The bright red cars take travelers through breathtaking Tuscan scenery.

Ancient cave tombs known as the "houses of fairies."

The abandoned ruins of a failed resort hide on this verdant, picture-perfect island.

Southern Italy's spinning top village.

This abandoned Brutalist treehouse is a hidden architectural relic.

Crushed coral and crystals give the sand its signature coloration.

A kindergarten shaped like a cat with a tail that's a slide.

This historic funicular system combines the old with the new while offering delightful views over the surrounding valley.

Solar observatory doubles as a daring display of Expressionist architecture, much to Einstein's chagrin.

One of the most easily accessible examples of the rare 1960s UFO houses.

There are two dozen tanks just sitting in an open field in Lower Saxony.

Twisted buildings adorn the banks of the Rhine river.

Bursting forth from a historic German neighborhood, these day-glo palaces are now a bright fixture in the town.

This museum tells the story of lake dwellers from 4000 BC to 850 BC, replete with stilt houses and goats.

An abandoned swimming pool decays on the outskirts of Berlin.

A stairway to heaven, or to nowhere at all.

This "floating railway" is one of the world's oldest monorail systems.

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

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

The fairy tale castle of the "fairy-tale king."

Ruins of a German Castle on top of a towering stone pillar.

One of the first hotel rooms in a pod.