The "Kugelbunker"

Augusta Raurica entrance to a Kugelbunker from the Cold War Photo Michael Vock

This is not a Roman monument, but the entrance to a so-called “Kugel-Bunker”. The bunker was built during the Cold War at the end of the 1950s.
Today it serves as a control station for the orienteering run through Augusta Raurica.