One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

This former Baroque palace on the historic Calle Montcada is a rare architectural gem and was once the meeting place of an aristocratic scholarly society.

An enchanting monastery in the Spanish countryside appears lifted from a fantasy tale.

This Manhattan museum houses one of the largest collections of Spanish art and manuscripts outside of Spain.

One kilometer of thick brass rod laid out before your eyes.

A room in New York City that contains 250 cubic yards of dirt worth a million dollars.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

Deceased nuns were placed on stone chairs to decompose, while the surviving nuns prayed near the lifeless bodies.

This shining multicolored metro station deep under Naples is said to be the most beautiful in Europe.

In a city that boasts four separate inclined cable railways, this is one of the busiest funicular lines in the world.

Italian poet Dante Alighieri is entombed in this small mausoleum in Ravenna, and his hometown of Florence has never been too happy about it.

Filled with goldfish swimming in a shallow pool of sea water, this ancient crypt is more wishing well than burial site.

A little slice of Japan and its aesthetics in London's Holland Park.

An otherworldly musical haven in The Big Easy.

An Italian hillside ghost town.

Stalactites and stalagmites in a beautifully lit cave.

Immortalized by artists, this church incorporates a medieval lighthouse into its shoreside structure.

Haunting monument to the German Jewish philosopher who died while fleeing fascism.

Pivotal home of Nobel Prize winner Pablo Neruda.

A cave in southern Italy adorned with thousand-year-old Biblical frescoes existed in obscurity until fairly recently.

Crossing this suspension bridge feels like walking through the sky, a fitting tribute to the head of the Apollo program.

A wooden dock art installation on Chiloé Island taps into the island's indigenous mythology.

The best Tiki bar in Las Vegas.

Dedicated to the art of hunting, with juxtapositions of contemporary art.