This abandoned Victorian-style house was built in 1884.

An architect transformed this abandoned cement factory into his castle-like workshop.

An out-of-place Air Force radar dome is all that denotes this park as a former missile launch site.

An abandoned church gets a second life as a massive beer hall and event space.

The early data processor factory founded in Washington for the 1890 U.S. Census went on to become IBM.

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.

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

A fascinating insight into daily life in the Eastern Bloc.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

This 17th-century structure is a beautiful testimony to traditional Persian architecture

Built to test magnetically levitated elevators, the tower also boasts Germany's highest visitor platform.

One of the most spectacular bridges in Spain spans a narrow chasm that divides the city of Ronda.

A suburban museum tells the story of a historic transportation network and even provides rides in antique trolley cars.

The sculpture of the deceased cockatoo flops atop its personal plinth.

This Seattle store is packed with all sorts of curious creatures and creations.

The Renaissance-era courthouse is a relic from the fortified town's centuries of Venetian rule.

Croatia's "hairy stone" fortress is one of the most well preserved Istrian castles.

Now abandoned, the world's first torpedo factory is crumbling into the sea.

The complex has been abandoned since the Croatian War of Independence, barring a stint as a set for 'Game of Thrones.'

The oldest arboretum on the Dalmatian coast doubles as the gardens of Kings Landing in "Game of Thrones."

This huge metal monument is slowly being stripped to its concrete skeleton.

The name of this famed hospital was once a byword for the horrors of medical and psychiatric care.

19th century cemetery hidden in Brooklyn's Prospect Park.