From cartoon characters to tiny tanks, a guerilla sculptor's little bronze statues are hidden throughout the city of Budapest.

On Gellért Hill, this statue depicts the tragic tale of lovers divided by the Danube.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

The world’s first statue of the late Apple co-founder.

A Bronze age settlement on the Greek island of Santorini might have been the inspiration for Plato's Atlantis.

One of the best-preserved medieval streets in Europe.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

A 2,000-year-old computer demonstrates remarkable engineering and astronomical precision.

This temple to the sturm and drang of Richard Wagner contains a dragon's cave and reptile zoo full of living "dragons."

A memorial for a young woman and her ghost, which are claimed to have caused countless deathly shipwrecks.

Tiny castle in the middle of the Rhine made you pay to pass.

A statue dedicated to the antihero of the Nibelung legend.

A ruined castle stands atop a hill surrounded by dragon lore.

A pair of giant stone heads represent the ancient Roman saints beheaded here.

The largest bell in the world has been swinging high above a Cologne cathedral for almost a century.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

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.

Model Trains and Much More in Hamburg.

An abandoned train station in Munich constructed for the 1972 Olympic games.

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

With over 10,000 lights, this engineering marvel lights up the city after dark.