A scenic view of a curving river lined with lush trees, featuring a small boat and a historic tower in the background. A large crane by the water, reflecting in a calm river with nearby buildings and a bright sun overhead.
Finland

Turku: Above and Below

Crane by the Aurajoki river
Turku, Finland, July 2023

Turku (Swedish: Åbo) is Finland’s oldest city. It sits on the country’s southwest coast, where the Aurajoki River meets the sea. Along the shoreline and around the city lie scattered archipelago islands with colorful summer cottages and fishermen’s huts. They form part of the landscape into which Turku is woven—between city and sea, between mainland, river, and islands.

Right at the harbor, where large ferries from Stockholm and Åland dock alongside cargo ships, Turku Castle stands on the banks of the Aurajoki River. Dating back to the 13th century, the castle has been expanded and rebuilt many times. Today, it houses a museum documenting life in and around the castle.

The city itself is shaped by the river. Along its banks are cafés, promenades, bridges, and lively walkways. In the historic center, you’ll find traces of medieval buildings such as the cathedral and the castle. But much of the old architecture was lost in a devastating fire in 1827. The few surviving remnants can still be spotted today, hidden between modern buildings, urban expansion, and reconstructed heritage.

And some of them lie beneath the city itself. Buried under Turku’s streets and houses is the older core—remnants of medieval walls and foundations. You can still encounter them here and there; for instance in the Museum of Contemporary Art. During the renovation of the museum building, the ancient walls and foundations in the basement were uncovered and seamlessly integrated into the exhibition.

Map of Turku
A colorful ferry navigates calm waters near Turku, featuring a vibrant pink design and clear skies.
A secluded islet featuring a small white house and a boat anchored nearby, surrounded by blue water and lush green trees.
A waterfront scene featuring a charming yellow house surrounded by trees, with a boat docked nearby on a serene lake.
A black waterfront cabin surrounded by greenery, with a deck overlooking calm waters and a small boat docked nearby.
A red wooden cabin by the water, surrounded by greenery, with a small boat docked nearby and rocky shoreline.
A charming lakeside gazebo with a green roof sits on a wooden dock by the water, featuring a small boat nearby and lush greenery.
Colorful waterfront cabins with decks surrounded by lush greenery and a small boat at dock on calm water.
A large Silja Line ferry docked at a bustling port, with city buildings and a cloudy sky in the background.
A waterfront view featuring a historic castle surrounded by modern buildings and lush greenery, with boats visible on the water.
A historic stone castle with multiple towers and an open courtyard, surrounded by white buildings and blue sky.
Turku Castle is Finland's largest preserved medieval building. In its current form, it consists of a medieval main castle and a Renaissance-era outer castle. It is located not far from the harbor at the mouth of the Aurajoki River, on the northern side of the river. The castle has been used as a museum since the late 19th century.
A stone wall of a historic building along a gravel path, surrounded by lush trees in bright sunlight.
A historical castle with white walls and red windows, featuring a tall flagpole and grassy grounds.
A wooden bridge leads through lush greenery to a historic white building, surrounded by vibrant trees on a sunny day.
A small island at the mouth of the Aurajoki River was chosen as the location for the castle. The location was strategically advantageous, as it made the castle difficult to besiege. From there, it was possible to control both shipping traffic on the river and the sea route to Sweden. Today, the island has become part of the mainland because the sea level in Turku has fallen by 3.5 meters since 1300 due to Post-glacial rebound.
A historical building viewed through an archway, featuring white walls, red window frames, and a flag atop the roof.
A stone archway frames a courtyard with old buildings and a wooden bridge overhead, showcasing historical architecture.
A stone castle viewed from below, framed by tall walls and numerous windows against a clear sky.
A large industrial crane towers over a calm harbor, with modern buildings and a boat in the foreground.
A large crane by the water, reflecting in a calm river with nearby buildings and a bright sun overhead.
A view from below a metal communication tower, showcasing its intricate framework against a clear blue sky.
A serene riverside scene featuring a calm waterway, historic ship, modern buildings, and lush greenery under a clear sky.
A wooden ship docked by the waterfront, reflecting in the calm water, with modern buildings in the background.
A tranquil waterfront scene featuring moored boats alongside a tree-lined promenade and buildings in a city.
A serene river scene with moored boats and lush trees, featuring a historic tower in the background against a clear sky.
A bright orange ferry navigates a calm river with urban buildings and trees in the background on a sunny day.
The “Föri” (a play on the English word “ferry”) is a small, chain-driven ferry that has been crossing the Aurajoki River since 1904. Formerly steam-powered, later diesel-powered, and now electric—the propulsion system has changed, but the route has not: once across, about 90 seconds per trip. There is no charge, and there is room for up to 75 people, but cars are not allowed on board.
Ruins of an ancient structure surrounded by modern architecture, featuring exposed brick and stone in a well-lit interior space.
The Aboa Vetus Ars Nova Museum (“Old Turku and New Art”) is located right in the center of Turku, in the so-called Rettig Palace, a classicist residential building dating from 1928. Originally, the plan in the 1990s was to build only a museum of contemporary art here. However, during the renovation, the remains of a medieval neighborhood were found under the building. Instead of building over them, they were excavated—and now both are on display: modern art above, ancient ruins below.
An interior view of a museum featuring exposed rock formations, display areas, and informational panels. Soft lighting enhances the exhibits.
The ruins of a total of five medieval stone houses can be seen in the museum's cellars. The ruins of other brick houses can also be found in the lobby and courtyard. The excavated historic river road runs through the entire museum grounds. Before the fire in 1827, it was one of Turku's main streets.
Ancient stone ruins displayed indoors, with modern architectural elements, highlighting historical preservation and archaeology.
A solitary man rows a wooden boat on calm water, reflecting nearby greenery and buildings.
Three sailboats docked along a calm waterfront with green trees and modern buildings in the background.
A boat docked along a serene waterfront, featuring a modern wooden cabin and surrounded by lush greenery.
A pedestrian bridge over a calm river, with trees and modern buildings in the background under a clear blue sky.
Neoclassical building with a yellow facade and columns, featuring a flag on top and cobblestone pavement in front.
The main building of the Swedish-speaking Åbo Akademi University on Domkyrkotorget. The building was not originally designed as a university building: the ground floor housed shops, warehouses, stables, carriage houses, and woodsheds, while the upper floor served as an elegant apartment for the city's weighmaster.
A charming archway leading to a cobblestone alley, flanked by orange buildings and a lamp post, under a clear blue sky.
A vibrant orange building facade with white trim, featuring windows and a central door, flanked by two wall-mounted lanterns.
A historic orange building featuring large windows and a grand entrance, showcasing classical architectural details.
The Cathedral School in Turku (Swedish: “Katedralskolan i Åbo”) is a Swedish- speaking secondary school and the oldest continuously operating school in Finland. It was founded in 1276. Today, approximately 260 students attend the school, where they are taught by 24 teachers. Until 1872, the Cathedral School was housed in a building within the cathedral walls. It then moved to its current location on the edge of Vanha Suurtori (“Old Great Square”). The building was constructed after the great fire in Turku, and during renovation work, ruins of old Turku were found under the floor.
A tranquil riverside scene featuring boats docked along a tree-lined riverbank, showcasing lush greenery and clear water.
A scenic river view with blue benches, vibrant flowers, and green trees lining the banks, capturing a peaceful atmosphere.
A scenic view of a curving river lined with lush trees, featuring a small boat and a historic tower in the background.
A historic red brick building with a tall tower surrounded by green trees and pathways. Slightly cloudy skies above.
The Cathedral of Turku is the only medieval cathedral in Finland. Every day, the chime of its bells at noon is broadcast on Finnish radio. Because construction of the cathedral spanned several centuries—from the late 13th to the mid-16th—it combines different architectural styles, including Romanesque, Gothic, and Neo-Gothic. The tower was added later and has been rebuilt several times after devastating fires. During the Great Fire of Turku in 1827, the cathedral was almost completely destroyed, both inside and out. Only the stone walls remained standing. In the subsequent restoration, the tower was rebuilt for what has so far been the last time.
A towering brick church with a prominent clock tower, surrounded by lush green trees and a clear sky.
On the outer wall of the church, to the right of the main entrance, you can find the Altar of Saint Christopher.
A unique wooden arch structure nestled among green trees, showcasing an artistic design in a park setting.
A wooden lattice structure in a park, surrounded by green trees and fallen leaves, creating a serene outdoor setting.