A small red-brick citadel on Kastellholmen, rebuilt in medieval-romantic style after the 1845 explosion of its gunpowder store. The Swedish naval ensign has flown here every day since the 1660s, and it is a state listed building.
- Address
- Kastellbacken 1, 111 49 Stockholm
- Hours
- Exterior always visible; the building is used for conferences and events
- Best time to go
- Afternoon, Evening · About 20 min
- Price
- Free to see from outside
- Price level
- kr
Details can change. Check hours and prices before you go.
Good to know
- The interior is a conference venue; enjoy it from the rocks around it.
- Sunset view west over Gamla stan from the island's edge.
