This museum housed in a former brothel explores the past and present of sex work in Amsterdam.

This 22-floor tower's Skydeck offers panoramic views of Amsterdam.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

A memorial in the Tiergarten is a reminder of the suffering inflicted on homosexuals by the Nazi regime.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

A haunting contrast of trains that both saved and took the lives of Jewish children in Nazi Germany.

Cold war icon and onetime "hole" in the iron curtain.

The last remnants of a massive medieval wall that once encompassed the city of Berlin.

A fascinating insight into daily life in the Eastern Bloc.

The unusually large seat sits atop the base of a ruined temple.

Go surfing on this urban wave, "hacked" by local surfers.

A fearsome dragon clings to a corner of Munich's city hall.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

This tribute to the 16th-century composer is now an unusual shrine to Michael Jackson.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

The prototype for all Nazi concentration camps.

Renaissance hospital featuring a rotating door into which unwanted babies were dropped.

A plaque on the base of this statue holds a bewitching design.

The mummified relic of St. Antoninus.

This strange bovine gargoyle is said to have been put in as a passive aggressive form of revenge.

Memorials at a Florence railway station remember the citizens who were deported from Italy and sent to extermination camps.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

Over 50 exquisite hand-painted Renaissance maps decorate a Medici storage room.