This red light district plaza memorializes the Fab Four and their historic connection to the area.

Hamburg's first legal sex work is relegated to a gated street that still does not allow pedestrian women.

This contentious squat has stood through fire, violence, and government intervention as a hotbed of leftist protest.

Model Trains and Much More in Hamburg.

Hamburgers are intensely proud of their tunnel beneath the river.

This doorless 20th-century elevator doesn't stop or slow down.

A plaque marks the spot where the saint was shoved off the Charles Bridge and into the river.

Once home to artillery, this garden offers more peace today than it did during its war-torn past.

Throughout this shopping mall are medieval ruins that were discovered during the mall's construction.

A quasi-futuristic roof sits atop a medieval Bohemian monastery damaged during World War II.

An ornate sculpture of an ox in repose marks the former entrance to Nuremberg's medieval meat market, which was destroyed during World War II.

The site is dedicated to an investigative journalist whose murder triggered a political uproar that changed Slovakia forever.

The memorial stands at the intersection of the rivers Morava and Danube.

This statue points to another unusual companion work of art often overlooked by visitors.

According to the local legend, these boys and ducks were turned to stone by an angered water goblin.

A series of playful yellow penguins share a serious message about the environment.

A relic from the Industrial Revolution got a second life as a contemporary performing arts space.

Martin Bricelj Baraga's monolithic sculpture measures the blueness of the sky, and changes color to match it.

These former Nazi anti-aircraft towers offer a singular view of the north of Berlin in the summer, and a sanctuary for bats in winter.

This water-tower-turned-high-end-apartment building was once the site of an early Nazi concentration camp.

A Soviet era flat that refused to conform to the dull gray standards.

A series of bronze circus performers spread throughout a Slovakian shopping center.

A sculpture of a beloved local figure, who tipped his top hat to everyone he passed on the streets of Bratislava.

Brass plaques embedded in pavement preserve the memories of those who lost their lives at the hands of Nazis during World War II.