This Rococo church is known as the most beautiful village church in the world, and does not disappoint.

This peculiar museum offers hands-on interaction with seemingly intangible principles of mathematics.

The only microgravity tower in Europe can produce nine seconds of weightlessness.

Hop aboard a charming bog train to explore this rare open-air museum of peat.

This imposing tower named after the mythical sword of King Arthur is considered the tallest freestanding climbing wall in the world.

A micro-communist utopia in Spain with no police, no mortgages and full employment.

Remarkably intact Roman stone fortifications have encircled this Spanish city for centuries.

A five-square-mile slice of Spain on the Mediterranean coast of North Africa.

Seaside ruins of a settlement that date back to the first century B.C.

The oldest Roman lighthouse still in use.

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

Giant granite sculptures representing family on the northern coast of Spain.

Mine shafts and hard pastries await visitors at this massive mountain of salt.

A Franco-era dam flooded (almost) everyone out of this centuries-old Aragonese town.

Of course Salvador Dalí lived in a castle...

Numerous sculptures set along hiking trails symbolize and idealize the relationship between man and nature.

The final resting place of the great navigator, or maybe his brother.

Village situated on a narrow volcanic escarpment.

Giant eggs, walls of bread, and nightmare surreality mark the largest collection of works by Salvador Dalí.

This Navarrese cave's history of witchcraft and pagan ritual is not just embraced, but recreated each year.

An isolated village literally built into the crevices and rock formations of a mountain.

Spanning the El Chorro gorge, this pathway used to be one of the most dangerous crossings in the world.

An enchanting monastery in the Spanish countryside appears lifted from a fantasy tale.

Natural stone arches form a walkable "cathedral" at low tide, then disappear entirely when the water returns.