The historic building's ornate stained glass fixture has survived the devastating 1906 earthquake, ensuing fires, and multiple redevelopment attempts.

An underground blaze turned this village into a ghost town.

True to its name, this little house presents like a dollhouse, and surprising details are revealed with a quick peek through the window.

A former infectious disease laboratory chronicles how tuberculosis shaped a village nestled in the Adirondacks.

Construction uncovered this trove of fossils, which visitors are welcome to add to their own collections.

This ex-prison dates back to the Middle Ages.

This historic Victorian mansion is allegedly so haunted that a signed waiver is required to enter.

After fleeing the Syrian civil war, chef Malakeh Jazmati began serving exceptional renditions of her homeland's cuisine in Berlin.

A cemetery that holds graves for the forgotten children of a burned orphanage.

A former hospital is now home to a pizza parlor and maybe a few ghosts.

One of the world's oldest continually operating bookstores.

"Medieval" castle built in the mid-20th century by one family.

Also known as the Blue Church, the building was consecrated to the daughter of Andrew II.

A perfectly preserved hill village where the buildings are painted like white lace.

The 700-year-old fortress was the site of Count Orlok's castle in "Nosferatu."

A unique hotel for the artistic soul.

An eerie, derelict amusement park in Berlin.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Warsaw's fantastically preserved gasworks...almost.

A hidden art gallery in an abandoned Warsaw fort.

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.

This uber-quaint Polish village is known for its habit of painting elaborate floral motifs on just about everything.

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

An underground city of salt.