The Berlin Zoologischer Garten station on Berlin's U2 U-Bahn line is the namesake for Irish band U2's song "Zoo Station" on their 1991 album Achtung Baby.

The Zoologischer Garten Berlin (Berlin zoological garden) is one of the biggest zoos in Germany and with the largest number of species of the world. It is located in Berlin Tiergarten near the S-Bahn and railway station in the city center.

Along with its aquarium, the zoological garden is one of the highlights of Berlin.

Today the zoo houses approximately 14,000 animals from 1500 species on a 35 hectare site in historical animal houses.

It is open all year long and can easily be reached by public transportation. Visitors can either enter the zoo through the exotically designed Elephant Gate beside the aquarium on Budapester Straße or through the Lion Gate on Hardenbergplatz.

(Source: wikipedia)