What to See Inside Turku Castle
The medieval keep, the Renaissance bailey and the Sture Church — a concierge guide to the highlights of a self-paced visit.
Turku Castle is explored at your own pace with no fixed itinerary, so knowing the highlights ahead of time helps you plan an unhurried two-to-three-hour visit. The site splits naturally into the older medieval keep and the later Renaissance bailey, with the attic exhibitions and underground passages rounding out the experience. This guide walks through what to look for in each area.
What is the medieval keep like to walk through?
The keep is the oldest part of the castle, with granite walls up to five metres thick at the base and narrow stone stairways connecting its floors. It's the sterner, more defensive half of the castle, built for siege rather than court life, and its low doorways and uneven floors are a physical reminder of how differently medieval builders thought about space.
Within the keep, allow real time for the Sture Church and Nun's Chapel — two adjoining rooms holding a rare collection of medieval wooden religious statues gathered from churches around Finland, and among the most atmospheric spaces in the whole castle.
What does the Renaissance bailey include?
Added later under Gustav Vasa and his sons in the 16th century, the bailey holds the King's Hall, the Queen's Hall and the King's State Room — grand, decorated spaces built for royal court life rather than defence. The change in atmosphere from the keep is immediate and deliberate.
These rooms give the clearest sense of how the castle's role shifted from border fortress to royal residence, and they're worth pairing directly with a walk through the keep to feel the contrast.
What's in the attic and the underground passages?
The attic exhibition rooms trace the history of Turku and the castle itself through everyday objects, trade and craft — a good counterpart to the grand halls below. Below ground, the keep's prisons and connecting passages recall the castle's long spells as an armoury, granary and prison.
Neither section takes long to see properly, but both add texture to a visit that would otherwise focus mainly on the state rooms and the medieval architecture.
Frequently asked
What is the main highlight at Turku Castle?
The Sture Church and Nun's Chapel in the medieval keep — a rare collection of medieval wooden religious statues in one of the castle's most atmospheric rooms — alongside the grand Renaissance King's and Queen's Halls in the bailey.
What is the difference between the keep and the bailey?
The keep is the older, defensive medieval core with thick granite walls and narrow stairways; the bailey was rebuilt in the 16th century into a Renaissance royal residence with grand decorated halls. Walking between them shows the castle's change from fortress to royal court.
Are there dungeons at Turku Castle?
Yes — the keep includes prisons and underground passages from centuries when the castle served as an armoury, granary and prison, alongside its roles as fortress and residence.