The Isartor at the Isartorplatz in Munich is one of four main gates of the medieval city wall. It served as a fortification for the defence and is the most easterly of Munich's three remaining gothic town gates (Isartor, Sendlinger Tor and Karlstor). The gate (German: Tor) is located close to the Isar and was named after the river.(Wikipedia)
"Munchen - Isartor"