This 3,500 pound obelisk was constructed with more than 1,000 reclaimed guns.

Rhode Island's tallest building bears a resemblance to the "Daily Planet" building and has been empty for more than five years.

A cluster of granite granaries perched on stilts.

This mechanical wonder towers above a river in Michigan's capital city.

Perched atop a brick smokestack, this enormous lug nut symbolizes the local minor league baseball team.

Housed in the university planetarium, the thousand-strong collection of tiny towelettes includes a used one from the hosts of Car Talk.

This line of 12 tower mills described in the story of Don Quixote is among the most iconic landscapes in Spain.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.

Down this yellow brick road, visitors are treated to toadstool houses and massive mushroom sculptures.

This magnificent market stands as a poignant symbol of the suffering caused by the Spanish Civil War.

Legends surround this natural rock formation that looks like a Moorish king wearing a crown.

A Spanish town built into the cliffs.

Single runway interrupted by a busy road that cuts across its middle.

Long tunnels run under the ancient chariot racing circuit to the tower.

This Roman arena once played host to bloody gladiatorial battles.

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

One of the most spectacular bridges in Spain spans a narrow chasm that divides the city of Ronda.

Abandoned tunnels dug for the once-thriving sea salt industry on the coast of southern Spain.

An enchanting landscape of ancient sandstone structures eroded into otherworldly shapes.

This amazing example of Valencian Art Nouveau looks more like a cathedral than a public market.

The world's largest wooden structure.

This house's itty bitty size means no humans allowed.

Commonly acknowledged as the only public monument to the Devil himself.

A whimsical brother of the nearby Fallen Angel statue takes the falling part quite literally.