The Palm House at the University of Copenhagen Botanical Garden

Copenhagen's Palm House went up between 1872 and 1874 to designs by the architect Peter Christian Bønecke, with the brewer J.C. Jacobsen of Carlsberg among its main backers. The view from across the pond shows its round central dome, the grand stair up from the garden and the long, low wings on either side. Inside the dome, white cast-iron spiral staircases climb to a walkway in the canopy, the best way to look down on the palms. The garden around it opened to the public in October 1874.