King Carlos IV laid the first stone during construction of this chapel.

A diminutive statue that was inspired by the sculptor's own daughter.

The largest underground lake in Europe.

Explore the rich history of Colombia's Indigenous peoples.

Its front wall is striped with a menagerie of fantastic beasts and magnificent monsters.

The centuries-old trees lining both sides of this dirt road may become Madagascar's first natural monument.

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.

Highly spherical boulders on the shores of New Zealand.

The rocks in this arid basin leave trails of movement behind them.

The last inhabitants of one of the U.K.'s most remote islands were evacuated in 1930.

This garden is very fertile.

Unusual hexagonal rocks formed by cooling lava named for their resemblance to traditional Japanese tatami mats.

Walk in the footsteps of the gods and straddle two tectonic plates.

These pink granite water slides are the result of millions of years of erosion.

Megachurch turned Catholic church comprised of 10,000 glass panes.

A surreal, Gaudi-inspired play space near an Anaheim community center.

The lead horse on a Disneyland merry-go-round that is older than the park itself.

A failed piece of Orientalism has become the proud symbol of a community.

A small Montana town commemorates the dog who waited at the train station every day for his owner to return.

Owned by no one but beloved by all, Brownie was a good dog.

The massive gardens and office of a Brazilian sculptor.

This beautiful natural train tunnel is said to grant the wishes of visiting lovebirds.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

This sprawling concrete suburb of Kraków was designed by the Soviet Union as the model proletarian city.