The hallucinogenic center of the ancient world.

Semi-recognized center of the world, with many oddities.

The unusual burial monument of Arizona's first governor.

A mysterious "wedding cake" castle in the middle of the urban desert.

Stairs often replace streets on the steep slopes of this old mining town.

Every Christmas, one Arizona city makes the most of its dry climate by creating an arid desert tannenbaum.

A pair of giant roadside arrows are all that remains of a former Route 66 trading post.

A Wild West jailhouse that slid down the mountainside.

A cabinet of curious mathematical models and old calculators.

This public square capitalized on a single Eagles reference to bring some life back to an Arizona town.

This striking public art installation is suspended above a public park, designed to gently move in the breeze.

On the outskirts of a reborn ghost town, a decaying post office remembers the bad old days.

A spiritual vortex among the red rocks in Sedona.

An urban laboratory.

A reproduction of earth's many biomes.

Thanks to an acoustic anomaly, this unassuming stone bench has heard one hundred years of secrets.

This cemetery features modernist statues as strange as its name.

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

Three bridges and one giant canyon make up this fantastic Spanish settlement.

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

Elaborate tile work in this railway station tells the story of Portugal.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.