The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

The martyr's wax-enhanced skeletal remains lie preserved in a glass case in the Santa Maria della Vittoria in Rome.

Two stone columns flank the grand Venice square, but there were supposed to be three.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

A slightly creepy gallery of plaster cast models in the same museum as Michelangelo's David.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

Guatemalan womanizer, venerated during Holy Week.

One of the world’s most colorful cemeteries, where each pigment is symbolic.

Volcanically heated hot springs.

A sprawling collection of over 106,000 toys from around the world.

A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

A unique geological area spiked with wind-carved rocks that resemble teepees.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

Frida Kahlo's childhood home, now a museum of her life and works.

An island filled with hundreds of hanging, decomposing, decapitated dolls.

This centerpiece of the Hollywood & Highland shopping center is a recreation of a long-lost movie set.

The space-age building is home to one of the few remaining rotating restaurants in America, and the only one that inspired a 1980s sitcom.

The programmatic glory of LA's giant whiskey barrel building has become an upscale reminder of the city's kitschy roadside past.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

Giant Redwood-themed cafeteria operates under the golden rule, "Dine Free Unless Delighted."

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.