Bali's remote "gateway to heaven" is one of the most sacred places on the island.

The name of this ancient Indonesian temple translates as "Elephant Cave" but it could be more accurately called "The Hellmouth."

Hindu temple of the dead home to hundreds of long-tailed macaques.

Isolated atop this Balinese sea crag is a lovely Hindu temple that is said to be guarded by sea snakes.

The oldest known university in the world is in Fez, Morocco.

Traditional 11th-century outdoor tannery.

An awe-inspiring mosque in Morocco with one of the tallest minarets in the world.

Thousands of narrow alleyways in an ancient medieval city make up what's believed to be the world's largest car-free urban zone.

Mosaics, storks, and brothels—this ancient city has it all.

One of the most spectacular canyons in the world.

Founded as a refugee camp, now a popular tourist spot.

This memorial, built by fascist dictator General Franco in 1960, has been repurposed by the people of Catalonia.

A statue of a boy looks up at where the famous rival to the Leaning Tower of Pisa once stood.

A local artist created this giant rippling wave.

The remains of the second-oldest zoo in Europe can be seen within these library gardens.

The mysterious large white cross visible from the runway is a memorial to a massacre during Spanish Civil War.

This 19th-century fountain's namesake animal isn't what you think it is.

This 15th century pharmacy displays a beautiful collection of ancient medicine jars.

Teeny tiny hotel on the coast of the Canary Islands.

Whether they are bulls or pigs, these ancient animal sculptures are fascinating relics.

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

The world's most elegant power lines.

A rare set of strings by famed instrument maker Antonio Stradivarius is on display in the Royal Palace.

A towering monument in Spain has proven to be more labor-intensive than initially planned.