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

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

Started as a kitchen garden, now the second largest botanical garden in the world.

More than half of this Indian palace is drowned but it looks all the more spectacular for it.

This shuttered power plant is now Turkey's first industrial archaeology museum.

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

An architectural oddity hides in plain sight on this iconic London bridge.

Scattered throughout London are ancient remnants of the city's former bounding wall.

Spitalfields' regal market goat is said to be a monument to the area's migrant population but most are pretty sure it's just a goat.

This lush area was the site of extensive enemy bombing during WWII.

World's most expensive home.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

This indoor ski resort has a mountain contained inside a mall.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

Berlin's old airport.

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

Giant relaxing Buddha in Malaysia.

Holy Hindu shrine in an enormous, monkey-filled limestone cavern.

A Buddhist theme park brings you a Buddhist version of Hell.

A faithful reproduction of Al-Jazari's enormous water clock.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

This famous city eluded concrete detection until the early 2000's.