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

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.

A curious carving hides on a marble column in the Mosque-Cathedral of Córdoba.

Spain's unique Mosque-Cathedral has been a place of worship for both Muslims and Christians throughout its history.

One of the final grand railway depot hotel complexes is slowly being restored to its former glory.

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

The story of Two Guns, Arizona could easily be described as a Shakespearian tragedy on Route 66.

The remains of this hell for leather wild west town can still be found in the Arizona desert.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

This fast-food outlet is the only space and UFO-themed McDonalds in the world.

A museum dedicated to the alleged Roswell Incident.

This is one really big nut.

This head-spinningly bizarre Depression-era art cave is wall-to-wall quartz and Jesus.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

Better known as the "Body Farm," this unique research facility has been studying how human bodies break down since the 1980s.

The land is home to swimming ponies and a legendary 18th-century treasure.

An ever-evolving wall of graffiti art off East Liberty Street.

Colorful and chaotic stacked hotel in North Holland.

A Dutch clog company in the town of Zaandam loves the wooden shoes so much it made a museum for them.

This still-celebrated home was a radical architectural experiment in 3D De Stijl.

A historic observatory now an astronomy museum beautifully situated at the moat of the Middle Age city centre.

This Netherlands museum holds a gloriously mechanical collection of ornate musical automata.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.