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

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

An abandoned swimming pool decays on the outskirts of Berlin.

The music is over at the Ballhaus Riviera Ballroom, but the ballroom remains in haunting disrepair.

This classic restaurant features a gorgeous mirror-clad room.

A state-of-the-art medical facility from the Imperial era is now a derelict ruin.

Fall down the rabbit hole into a surreal journey of human consciousness "from ass to soul."

This monumental work of art symbolizes the coming together of a previously divided city.

Once a path for Jewish funeral processions, this unassuming alleyway is rich in local lore.

Inside this Jewish cemetery is a memorial to soldiers who deserted the German army and were executed.

An old tram depot transformed into a vintage car paradise.

This concrete residential area doubles as an open-air gallery.

One of downtown Berlin's last reminders of its Communist past.

A monument to the man who almost killed Hitler.

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

Known simply as "The Hand," this famous public sculpture in Berlin was featured in a Depeche Mode music video.

One of the world's heaviest musical instruments towers within a popular urban park.

This curious sculpture represents the perseverance needed to take to the skies.

Berlin's oldest surviving academic architecture hosted decades of animal dissections.

From Iggy Pop to David Bowie to Nick Cave, this regal music studio has served some of the all time greats.

When German-Iraqi relations broke down, this embassy was vacated post haste.

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

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

Beneath the impressive baroque cathedral that rises from the center of Berlin lies the largest collection of Prussian royals in the world.