Panoramic views from the mountains over a facility built to provide tuberculosis patients with fresh mountain air.

A house carved into a rock in the 1940s.

This popular pitstop lives up to its name.

An aluminum skeleton brings Chinese mythology to the French shore.

One of a series of no-purpose kinetic artworks by Swiss sculptor Jean Tinguely.

Featuring a meatless buffet fit for kings, this family-owned Zurich eatery is considered the oldest vegetarian restaurant in the West.

A majestic hotel that also stands as a historic relic.

Part of this hotel resides in Switzerland, the other in France, and the border splits the honeymoon suite.

A curious cave church carved into the face of a cliff.

A tiny church on a man-made island in the Adriatic.

A curious little museum dedicated to the furry feline in the cat haven that is Old Town Kotor.

Local lore says the devil built this beautiful medieval bridge to help a fleeing bandit.

The historic “pink house on the hill” is an architectural gem that now serves as a center for water conservation.

Julia Morgan's Moorish-Gothic labyrinth of fountains, trees, natural light and Oakland's notable dead.

The unbelievably opulent home built for an infamous newspaperman.

Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

A pair of mutilated bronze octopuses slump at the base of the monument honoring California's admission to the U.S.

Early prototype for Frank Lloyd Wright's Guggenheim.

A meditative space out of a fantasy story.

This lucky bronze frog was gifted to Madrid by a casino.

Occupied for six centuries by Franciscan Order nuns, this monastery is an amazing ode to Catalán Gothic architecture.

The abandoned ruins of a beautiful medieval castle just outside Barcelona.

A surrealist labyrinth and museum of contemporary sculptures.

An architect transformed this abandoned cement factory into his castle-like workshop.