Short version: spiral staircase with foundation stone below. Fuller description: Spiral wooden staircase with brass handrail bannisters in Aarhus City Hall, Rådhuset, Denmark. Designed by Arne Jacobsen and Erik Møller. Listed building. On the floor below, the building's foundation stone. Unseen: a time capsule. When the foundation stone was laid in 1938, a time capsule was buried under it. The capsule is a lead tube containing coins from that time, newspapers of the day and a document about the start of construction. The foundation stone is black granite from the site where the city’s first town hall stood beside Domkirken (the cathedral).

Same spiral staircase with foundation stone below, different angle. Same full Alt Text as other photos follows: Spiral wooden staircase with brass handrail bannisters in Aarhus City Hall, Rådhuset, Denmark. Designed by Arne Jacobsen and Erik Møller. Listed building. On the floor below, the building's foundation stone. Unseen: a time capsule. When the foundation stone was laid in 1938, a time capsule was buried under it. The capsule is a lead tube containing coins from that time, newspapers of the day and a document about the start of construction. The foundation stone is black granite from the site where the city’s first town hall stood beside Domkirken (the cathedral).