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

Germany has its very own Centralia, whose spark remains attributed to "spontaneous combustion."

Site of one of World War I's most horrific scenes.

This modern French ossuary contains the jumbled bones of 130,000 WWI soldiers.

A towering baroque basilica jutting out of the French countryside.

This striking fort on the Maginot Line looks just as it did after being destroyed in the Fall of France.

The remains of 40,000 humans, meticulously stacked in a tiny churchyard shed.

A swath of France so devastated by war it is still forbidden to go there.

A former ironworks that was the first UNESCO industrial site.

The final resting place of the poets Shelley and Keats.

A Milanese café entirely designed by the American director Wes Anderson.

The names Lúthien and Beren can be found inscribed on the shared grave of the famous writer and his beloved wife and muse.

This iconic 1,000-year-old medieval castle is a favorite of the film industry, most notably as the location for Hogwarts in Harry Potter.

The tiny Belgian town's ancient version of Mardi Gras involves eerie wax masks, sticks for warding off evil, and ostrich plume hats.

Three floors of musical instruments coming from all corners of the world and hundreds of years of musical history.

This volcanic island in the Pacific just keeps growing and growing.

What's believed to be the country's first shrine is, in Shintō mythology, the annual meeting place of the gods.

These Japanese ruins have been brought back to life with elaborately recreated buildings.

Twelve hundred stone carvings guard this off-the-beaten-path Buddhist temple.

Thirty architectural gems from the 19th- and early 20th-century Tokyo were restored and relocated to this space.

Where beer lovers can literally immerse themselves in beer.