Berlin, Italy
The Berlin Fortress (German "Festung Berlin") was the fortification of the historic city of Berlin. Construction started in 1650. The ramparts, walls, moats and glacis of the 17th-century bastion fort ran around the historic city limits. The demolition of its ramparts began in 1740.
Listen to the audio guide for Berlin Fortress Free on WIP — starts by itself when you arrive, even with the screen off