A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

An ethereal glowing blue ocean cave in Croatia.

The four-story mural is the centerpiece of a lavish hotel's lush atrium.

The abandoned club hides in the hills of Ibiza.

This museum is known as the "Land of the Dinosaurs," but its full-scale dino models are just the start.

Marvel at this massive waterspout fueled by the incoming tide.

This elaborately decorated wall is an homage to the history, beauty and lore of the palm tree.

This beautiful spit of land was once the summer playground of the king of Spain.

Originally planted by the ancient Carthaginians, this sprawling palm grove is one of the largest in the world.

Originally used to sell brandy, the bull-shaped billboard became an iconic symbol of Spain.

A reproduction of the famous prehistoric cave paintings is hidden underground at the National Archaeological Museum.

A strange anthropomorphic stele with a mysterious inscription that has never been deciphered.

A wonderful collection of fossilized dinosaurs and other creatures that roamed the landscape millions of years ago.

A model solar system adds a celestial touch to this suburban park.

You can soak in three relaxing pools filled daily by the tide.

This remarkable museum sprung from one of the most important prehistoric archaeological sites in the world.

Two large eyes painted anonymously on a mountain overlooking the city pay homage to an old legend.

Five million people are laid to rest here, more than the population of Madrid itself.

A well-restored ancient archaeology site gives a real feel for life during the Roman age.

Translating as "The Jump of the Girlfriend," this stunning waterfall has a tragic legend behind it.

A whimsical garden of outsider art in the Spanish countryside.

Volcanic rocks ground down into sand make this Spanish beach as black as night.

A modernist church in an ancient village.

A living art gallery painted on a canvas of Monterey pine trees.