Hamburg U-Bahn

==19??-present==
Hamburg U1.svg|Line U1
Hamburg U2.svg|Line U2
Hamburg U3.svg|Line U3
Hamburg U4.svg|Line U4
Hamburg U5.svg|Line U5 (planned)
Category:1912
Category:1910s
Category:Transport
Category:Rail transport
Category:Hamburg
Category:Germany
Category:Public transport in Germany
Category:Underground rapid transit systems