The world's tallest church tower reveals a spectacular view to anyone up to the task of climbing the daunting staircase.

Retirement home for giant obsolete machines.

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

Metro station with a claim to rock n' roll fame.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

The medieval institution is home to the precious treasure stolen in World War II in one of the greatest art thefts of the 20th century.

Germany's Glienicke Bridge has a shady history of clandestine meetings, espionage, and spycraft.

This Dresden church was purposely rebuilt Protestant after being demolished in World War II.

A subterranean display of public art and architecture.

An industrial relic is now one of Europe's most staggering art spaces.

The entrance to this Frankfurt subway station looks like an old tram car crashed into the concrete sidewalk.

The skeletal frame of a decommissioned gas-pumping station offers breathtaking views of greater Berlin.

This ancient ruined monastery has been destroyed by fire so many times that it seems like God hates it.

The industrial monstrosity known as Bagger 258 is a colossal mining machine built in the DDR - but now left for dead in a German field.

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

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

A restaurant and observation deck built in a unique broadcasting antenna.

This conical hill was built as a testing ground for an engineer known as the Glider King.

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.

These bronze pamphlets remember a remarkable group of Germans who fearlessly opposed the Nazis in the very center of their power.

This historic stone bridge has an entire neighborhood clinging to its sides.

Berlin's old airport.

Super-heavy Nazi architectural experiment.

A 12th-century fortress containing some of Berlin's oldest buildings.