Not to be confused with the iconic New York City skyscraper, this Chicago building is a vibrant hub for artists.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

This ratty natural history collection is a charming relic among a city rushing into modernity.

An out-of-place slice of France, smack in the middle of Shanghai.

The once highest point in China blends symbolic design with a kick of adrenaline.

This statue once earned the distinction as one of the "Three Major Disappointments of the World."

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

Its humdrum facade only adds to its electrifying appeal: a rooftop with panoramic views of a shapeshifting metropolis.

The large collection of pre-Columbian pottery might make you blush.

An early 20th-century bullring converted into a modern shopping center.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

One of Catholicism's four major basilicas has a series of papal portraits that are said to predict the end of the world.

A Nesting Doll of Churches.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

The skull of the patron saint of lovers lies in the Basilica di Santa Maria in Cosmedin—maybe.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

Rome's semi-secret peephole vista is also a former Crusader stronghold.

The yawning maw of this pagan visage is said to bite off the hands of liars.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

Devoted Buddhists can earn enlightenment in the next life by crawling through this symbolic nostril.

This massive wooden building contains a giant Buddha, healing pillars, and tame deer wandering the grounds.