Places KLM602 Wants to Go

A unique Holocaust memorial tells the personal stories of the Jewish residents exiled from greater Berlin.

A stairway to heaven, or to nowhere at all.

A striking 12th-century-style castle built on the edge of a cliff.

This World War II bunker now survives as a documentation of the Nazi regime and war crimes.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

This cemetery features modernist statues as strange as its name.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

This fast-food outlet is the only space and UFO-themed McDonalds in the world.

This lower Manhattan bar is set up in an old bank vault that rests beneath a skyscraper that hides even more historic splendor.

A century-old landmark that once employed Sinclair Lewis and is still known for its ghost stories.

Residents of Berlin take their coffee and cake in one of the city’s most restful spaces: a cemetery.

The most visited, and possibly most controversial, museum in Germany.

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

A tribute to the Polish insurgents who fought in the failed attempt to end their city's Nazi occupation.

The world’s narrowest house makes for an awkward, four-foot-wide living space.

Warsaw's fantastically preserved gasworks...almost.

After the famous composer died in Paris, his sister snuck his heart out of the country to honor his wish that it be buried in their native country.

A hidden art gallery in an abandoned Warsaw fort.

A 90-ton, gravity-defiant steam locomotive shoots for the skies in this bizarrely beautiful public artwork.

This man-made mound monument was built out of soil from all across the Polish empire.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

Countless stories attempt to explain Poland's mysterious J-shaped trees.

The walls and ceiling of this Polish church are decorated with thousands of skulls, with another 21,000 skeletons just below.

This ruins of an abandoned Victorian-era mental health facility.