Discover Finland's 8 UNESCO World Heritage Sites

5 minute read
Suomenlinna fortress in the summer.

Finnish UNESCO World Heritage Sites at a glance

Wander an 18th-century wooden town, sail out to the fortress island of Suomenlinna, stand where astronomers once measured the Earth, or see Alvar Aalto's architecture, Finland's newest addition to the UNESCO list.

Finland is full of unique landmarks and natural beauty, but some places are recognised as truly exceptional: seven cultural sites and one natural one, formally protected for human generations to come. 

Here's a list of what makes each one worth the trip.

Article published: August 14, 2026.

 

Credits: City of Rauma

Quick facts: Finnish UNESCO sites

  • Finland has 8 UNESCO World Heritage Sites: 7 cultural, 1 natural
  • Oldest inscriptions: Old Rauma and Suomenlinna, both 1991
  • Newest addition: Aalto Works, the architecture of Alvar, Aino and Elissa Aalto, inscribed in 2026
  • UNESCO sites span the whole country, from Old Rauma on the west coast to Struve Arc points in Finnish Lapland
  • Most sites are reachable by train to the nearest city, then a short taxi, bus or rental car drive

1. Fortress of Suomenlinna, Helsinki

One of Finland's most popular attractions, Suomenlinna fortress, is a must-visit destination in Helsinki. The Swedish Crown began building Suomenlinna, or Sveaborg in Swedish, in 1748 to protect Finland against Russia. Stretching across six islands, the maritime fortress was an engineering marvel in its day.

Today, it's a UNESCO World Heritage site that impresses visitors with its historic charm and village-like atmosphere. Public transport ferries to Suomenlinna depart from Kauppatori Market Square. The journey takes just 15 minutes, and the ferries operate all year round. In summer, private ferry companies also sail to Suomenlinna, making it easy to island-hop to nearby islands such as Lonna and Vallisaari.

You can easily spend a whole day in Suomenlinna, wandering around the islands, exploring old tunnels or simply relaxing by the sea. There's even a tiny sandy beach for swimming and sunbathing, as well as several small museums to visit. People still live in Suomenlinna's beautiful historic buildings, so remember to respect the privacy of residents while you explore.

Suomenlinna is especially popular as a picnic spot. Pick up treats and drinks from the Old Market Hall, hop on a HSL ferry and find your own peaceful picnic spot somewhere on the islands. Even if you don't pack a picnic, you won't go hungry. Suomenlinna is home to several cafés, bars and restaurants.

You can visit Suomenlinna in winter, too. The island has a particularly romantic atmosphere when it's covered in snow, and after a walk in the crisp sea air, a cup of coffee or a candlelit dinner tastes especially good.

Credits: Julia Kivelä
Credits: Suomenlinna, Arttu Kokkonen

2. Aalto Works: 13 buildings by Alvar, Aino and Elissa Aalto in Finland

Credits: Juho Kuva

Chances are you already know the Aaltos' work, even if the names are new to you: their curved wooden chairs and glassware are modern design staples.

Alvar Aalto (1898–1976) was an architect and designer who revolutionised the modernist movement. Together with his wives Aino Aalto (1894–1949) and Elissa Aalto (1922–1994), both architects as well, he created spaces that support wellbeing. He called his design philosophy "organic functionalism" – it's practical, warm and shaped by nature.

Aalto Works, thirteen sites in Finland designed by Alvar, Aino and Elissa Aalto, is the latest addition to the UNESCO World Heritage List.

In Helsinki, you can visit the Aalto House, his home, and Studio Aalto in Munkkiniemi – two must-see Aalto destinations. You can also attend a concert or an event at Finlandia Hall by Töölönlahti Bay or go see a music show at the House of Culture in Kallio.

One of the best examples of Aalto's importance is Paimio Sanatorium, about a two-hour drive from Helsinki. Aalto designed it as a healing environment, and it makes an inspiring day trip for fans of interior design and architecture.

Credits: Finlandia Hall
Credits : Paimio Sanatorium
Credits: Maija Holma, Alvar Aalto Foundation

You can also see Aalto's handprint in his hometown of Jyväskylä, in Central Finland. The Aalto2 Museum is a must-visit for architecture enthusiasts visiting this Lakeland town, as is the Aalto campus of University of Jyväskylä, Säynätsalo Town Hall and Muuratsalo Experimental House, Aalto's summer residence and atelier.

Other Aalto Works sites recognised by UNESCO are the National Pensions Institute (KELA) in Helsinki, Villa Mairea in Pori, Sunila Pulp Mill Residential Area in Kotka, Church of Three Crosses in Imatra and Seinäjoki Civic Centre in Seinäjoki.

In addition to the thirteen World Heritage sites, the broader Alvar Aalto Route connects a wide range of significant Aalto destinations across Finland, offering travellers an even deeper way to explore the legacy of one of the world's most influential architects.

You can also see Aalto's furniture in Finnish homes and public spaces: these beloved classics are still as beautiful and practical as ever. An Alvar Aalto Vase – still produced by Iittala – makes the perfect souvenir for a design aficionado.

Getting there: the five Helsinki sites (Aalto House, Studio Aalto, Finlandia Hall, House of Culture, KELA) are all reachable by tram, metro or on foot in the city. Sunila in Kotka is most easily reached by car. For the others, direct trains run to: 

  • Jyväskylä for Säynätsalo Town Hall, Muuratsalo, and Aalto campus
  • Turku for Paimio Sanatorium (with a short drive with a car or bus, you can plan your bus trip in the Turku region at foli.fi)
  • Pori for Villa Mairea at Noormarkku which is a 20-minute drive from Pori
  • Seinäjoki for the Civic Centre
  • Imatra for the Church of Three Crosses
Credits: Juho Kuva, Villa Mairea
Credits : Karri Laitinen, Sunila
Credits: Tero Takalo-Eskola, Visit Jyväskylä

3. Old Rauma

On Finland's west coast, Old Rauma is not what you might expect a medieval town centre to look like. It consists of around 600 colourful wooden houses built around the Church of The Holy Cross, which dates to the 15th century. The wooden town was rebuilt after fires, and most of the current buildings date from the 18th to the 19th centuries.

Today, Old Rauma is a lively residential and commercial area, filled with little cafés, restaurants and shops. It's the perfect place for a leisurely summer stroll, but the snow-covered alleys are just as magical at Christmas.

When you get hungry, head to local favourite Wanhan Rauman Kellari for traditional Finnish cuisine. For dessert, Wanhan Rauman KaffeBar is known for its delicious cakes and pastries. Pancakes and vanilla-filled doughnuts are among the local specialties. For accommodation, boutique hotel Hotelli Vanha Rauma is hard to beat.

Local handicrafts make the perfect souvenir. Rauma is famous for its beautiful lace, and the city celebrates the tradition every year with Rauman pitsiviikot, a lace festival held in July.

Getting there: there's no direct passenger train to Rauma at present – take the train to Pori and continue by taxi or bus, around 50 kilometres. By car, Rauma is an easy drive from Turku, Pori or Tampere.

Credits : Visit Rauma
Credits: Visit Rauma, City of Rauma

4. Petäjävesi Old Church near Jyväskylä

Credits: Visit Jyväskylä, Tero Takalo-Eskola

Petäjävesi Old Church in Central Lakeland is an astonishing sight. The beautiful wooden church seems to rise straight from the lakeshore, in a landscape that looks like a painting. Inside, the church has a unique atmosphere. Its silky patina, elaborate carvings and the slight irregularities in the floor beams reveal the touch of the local craftsmen who built it centuries ago.

Built between 1763 and 1765 for a small Lutheran parish, this masterpiece of Northern European wooden architecture is made entirely of logs. You can spot Renaissance and Gothic influences, interpreted by the local master builder Jaakko Leppänen in a distinctive Nordic style. The bell tower was added in 1821 by his grandson, Erkki Leppänen.

By the late 19th century, the church had been abandoned, which is why it has survived in such an original state. It was restored after the 1920's and inscribed on the UNESCO World Heritage List in 1994. Today, the church is still used by the local parish during summer and remains a popular wedding venue.

Petäjävesi Old Church is located near the city of Jyväskylä in the heart of Central Finland, in Lakeland. Surrounded by forests, lakes and traditional summer cottages, it makes a perfect stop on a holiday in the Jyväskylä region or a road trip through Finland.

Getting there: direct trains run from Helsinki to Jyväskylä; from there, it's about 30 kilometres west by car or taxi.

Credits : Visit Jyväskylä, Tero Takalo-Eskola
Credits: Visit Jyväskylä, Tero Takalo-Eskola

5. Verla Groundwood and Board Mill, Kouvola region

At the Verla Mill, you can discover the story of Finland's "Green Gold": the forest industry.

The Verla groundwood and board mill was built in 1882 beside the Verlankoski rapids in the northern part of the Kymi River Valley in southeast Finland. Production of pulp, paper and board flourished here, and the forestry industry played a vital role in Finland's development. To house the workers, a residential area was built around the mill, creating a small rural industrial village.

Operations ceased in 1964, and the mill was left largely untouched. Today, it is one of the few surviving examples of the mill communities that were once common across Northern Europe and North America.

The red-brick buildings house a museum, and in summer you can also visit workshops, boutiques and exhibitions. After exploring the site and its surrounding nature, enjoy local cuisine at Restaurant Patruunan Pytinki in a stunning historic setting, or stop by the Mill Magazine Café for a cinnamon roll and coffee.

Verla is in the Kouvola region, which also includes the beautiful Repovesi National Park. Families may also enjoy a visit to Tykkimäki Amusement Park, while nature lovers can combine Verla with hiking or canoeing in the surrounding lake area. Verla also makes an easy day trip from Helsinki, as it's just under 2 hours away by car.

Getting there: take the train to Kouvola, just over an hour from Helsinki, then continue by taxi or rental car for the remaining 30 kilometres or so. A seasonal weekend bus also runs in summer.

Credits : Julia Kivelä
Credits: Julia Kivelä

6. The Kvarken Archipelago, Vaasa

Credits: Visit Vaasa

There's stunning nature across Finland, but the Kvarken Archipelago in the Gulf of Bothnia is the only natural UNESCO World Heritage site. This unique archipelago, shared with Sweden, has been shaped by ice age glaciers. The land is still rising about one centimetre a year after the last ice age, shaping and shifting Kvarken Archipelago's bays, shores and thousands of islands. A difference in the landscape can be seen even during a human lifetime.

The Kvarken Archipelago is a paradise for nature enthusiasts and birdwatchers. The shallow, cool lagoons and pools attract red-throated divers, black guillemots and migrating cranes and buzzards in spring.

You can visit this natural wonder from the city of Vaasa in Finland's west coast. The Kvarken archipelago can be reached by car in just 20 minutes from Vaasa, and it's served by Raippaluoto Bridge, one of the longest bridges in Finland.

The Kvarken archipelago is not just nature. You will see fishermen's huts, summer cabins and saunas, and there are restaurants and cafes too. If you want to stay for the night, check out guest house Merenkurkun majatalo.

Getting there: direct trains connect Helsinki to Vaasa; from the city, it's about a 20-minute drive to the archipelago, or a boat trip in summer.

Credits: Jaakko Salo

7. The Struve Geodetic Arc

When admiring the vast National Landscape overlooking the Tornio River Valley in Aavasaksa, Finnish Lapland, you are standing where scientific history was made 200 years ago.

Between 1816 and 1855, astronomer Friedrich Wilhelm Struve led a chain of survey triangulations from Hammerfest in Norway to the Black Sea in Ukraine that helped accurately measure the size and shape of the Earth. Known as the Struve Geodetic Arc, this network of survey stations stretches for 2,820 kilometres across 10 countries, six of them in Finland from Enontekiö and Aavasaksa to Pyhtää in Southern Finland. This extraordinary scientific achievement is protected as a UNESCO World Heritage Site.

You don't need to be interested in geodesy to appreciate the stunning scenery from the survey point in Aavasaksa. The natural beauty of the area has attracted travellers for centuries. The historic Keisarinmaja, Emperor's Lodge, was built for Russian Tsar Alexander II, and today visitors still come for the sweeping views, hiking trails and the magical Midnight Sun.

In summer, enjoy hiking, mountain biking, canoeing, and rafting. Autumn is a wonderful time for outdoor adventures and auroras, while in winter Aavasaksa transforms into an off-the-beaten track wonderland of snow-covered hills and forests.

After a day outdoors, Kaamos Lodge offers accommodation fit for royalty. The architecture blends seamlessly into the surrounding landscape, and you can admire the gorgeous views from the sauna or the infinity pools. WALD Villas is another excellent choice. These modern log cabins, each with a private sauna, offer the perfect escape in nature.

Getting there: Ylitornio has its own station on the Helsinki-Kolari line, served by overnight trains – some even let you bring your car along on car-carrier wagons. From Ylitornio, it's a short drive or taxi to Aavasaksa. For all train connections and timetables in Finland, visit vr.fi.

Credits: Matti Björninen

8. Bronze Age burial site of Sammallahdenmäki

Around 20 kilometres inland from Rauma lies another historic site, dating back to the Bronze Age: the ancient burial site of Sammallahdenmäki.

After a short walk along a nature trail, you'll reach a mysterious landscape of rocky outcrops and 36 burial cairns, built up to 3,500 years ago. Surrounded by Finnish forest, the site offers a fascinating glimpse into prehistoric life. At the time of the burials, the coastline extended all the way to this area.

Visiting Sammallahdenmäki is free, and the site is open to visitors from May 1 to October 31.

Information boards explain the site's history, but a local guide offers deeper insight into the beliefs and burial traditions of the ancient Finns.

Getting there: there's no regular public transport to Sammallahdenmäki. Reach it by car or taxi from Rauma. In summer, a public tour also runs from central Rauma, or you can arrange a private tour for your group.

See also

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