Helsinki is a city rich in culture, history, and modern innovation. Whether you’re visiting for a short trip or an extended stay, there are plenty of must-see attractions. Here are the 5 things to do in Helsinki to make your visit unforgettable.
1. See the Design and Spaces of Central Library Oodi
Central Library Oodi is more than just a library! It is a modern architectural masterpiece and a cultural hub in the heart of Helsinki. Literally, the living room of Helsinki.

Oodi opened in 2018, and boasts a sleek Scandinavian design, expansive glass windows, and wooden wave-like structures that make it an iconic landmark.
Inside, visitors can explore vast collections of books, and enjoy reading lounges, workspaces, a cinema, and even a recording studio. 3D printers, sewing machines, and other tools can be used to bring ideas to life.
The top floor offers a nice view of the parliament and Musiikkitalo, a state-of-the-art music venue hosting the world’s largest modern concert organ.

2. Explore the Suomenlinna Sea Fortress
A UNESCO World Heritage Site, Suomenlinna is a must-visit destination for history lovers and nature enthusiasts alike.
Built in the 18th century, this sea fortress spans six interconnected islands that you can visit.

Suomenlinna offers a fascinating glimpse into Finland’s military history. Visitors can wander through its historic walls, museums, and scenic trails with stunning views of the Baltic Sea.
To reach Suomenlinna you will need to take a ferry from the Market Hall harbour. If you have a daily HSL ticket, you are good to go!
Even single HSL tickets include the ferry ride to Suomenlinna!
You can easily spend between 1 and 3 hours exploring Suomenlinna.
Suomenlinna In The 5 Things to Do in Helsinki
Suomenlinna makes the list of the 5 things to do in Helsinki because of the variety of activities it offers.
Start with a walk along the fortress walls to enjoy panoramic views of the Baltic Sea. You may want to check out a few cool spots:
- The Suomenlinna Museum provides insights into the site’s history and significance.
- The Military Museum of Manège showcases Finland’s wars during its period of independence, frontline illustrations, and the life of soldiers in Finland and elsewhere.
- The Vesikko Submarine Museum is a unique highlight! The submarine Vesikko is an authentic and rare memorial from World War II. You can walk inside the submarine!

3. Discover the Historic Markets of Helsinki
Helsinki’s markets offer a delightful mix of local flavors, traditional Finnish crafts, and vibrant city life.
The Old Market Hall (Vanha Kauppahalli) near the harbor is the most famous, featuring fresh seafood, cheeses, and reindeer meat.

Whether you’re looking to sample Finnish delicacies or pick up unique gifts, Helsinki’s markets are a must-visit.
Be sure to try some local specialties like freshly prepared salmon soup or Finnish pastries (like karjalanpiirakka). The vibrant atmosphere and stunning views of the waterfront make this a must-visit spot.
4. Experience Helsinki’s Sauna Culture
Saunas are an essential part of Finnish life, and no trip to Helsinki is complete without experiencing this cherished tradition.
For this reason, trying a sauna makes it to the list of the 5 things to do in Helsinki!
The city is home to several renowned public saunas, each offering a unique experience.
Löyly, located by the seaside, combines modern design with a relaxing atmosphere, featuring both wood-burning and smoke saunas. We suggest to book in advance!

For a more traditional experience, visit Kotiharjun Sauna, the last remaining wood-heated public sauna in Helsinki!
Immersing yourself in Helsinki’s sauna culture is surely an authentic Finnish experience.
Some saunas have separate sauna rooms for men and women, others do not make any distinctions.
5. Temppeliaukio Church
Also known as the Rock Church, Temppeliaukio Church is one of Helsinki’s most breathtaking architectural wonders.

Carved directly into solid rock, this Lutheran church boasts a unique combination of rugged stone walls, a copper dome, and natural light streaming through skylights.
The acoustics inside the church are exceptional, making it a popular venue for concerts and special events.
A visit to Temppeliaukio Church offers not only a spiritual experience but also an appreciation for Finnish design and innovation.
Final Thoughts
Helsinki is a city that seamlessly blends history, nature, and modernity, offering visitors an unforgettable experience.
If you are short on time, you can spend 1 Day in Helsinki visiting some of its key points.
Whether you’re admiring architectural marvels, indulging in local markets, or relaxing in a sauna, these five activities will give you an authentic taste of Helsinki’s charm.