Free Self-Guided Berlin Tour: Five Hidden Historical SightsBerlin (category)10 min read22/07/201515/07/2026
East German Watchtower on Schlesisches BuschBerlin (category), Germany (category)4 min read06/06/201530/01/2024
East German Watchtower on Potsdamer PlatzBerlin (category), Germany (category)4 min read28/01/201530/12/2023