Bastion of Keizerspoort

The Bastion of Keizerspoort was one of nine bastions in the Spanish ramparts, and protected the nearby Keizerspoort Gate. The bastion is a unique sixteenth-century relict, built in brick and clad with “Lede” sand-lime bricks. The corner of the bastion has an especially interesting design and consists of a half pyramid, with a hemisphere on top of it.
The Bastion of Keizerspoort was excavated in 2003 during an archaeological survey of the Leien. It was preserved because it was deemed of great cultural-historical value. The bastion was first cut up and then rebuilt deeper below ground, in the car park under the National Bank where the public can freely visit it.