The most visited pilgrimage site in Armenia once held a saint in a pit for 13 years.

This ancient monastery complex was transformed from an island to a peninsula when the lake was partially drained.

This Armenian monastery was carved out of cliffs and named after the spear used to stab Jesus.

A geological oddity topped with a 2,000-year-old pagan temple.

Huge stairway leads to this massive gallery.

Destruction from Armenia's 1988 earthquake inspired an artist's sculptures of scrap metal.

This little medieval church hidden in the center of Yerevan was lost and rediscovered—twice.

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

The oldest Roman lighthouse still in use.

Made up of 3,200 recycled glass bottles, this tree pays homage to Asturia's love of cider.

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

Two large posteriors in one giant statue.

The much-loved protagonist of famed Argentinian comics can be found sitting on a park bench.

Marvel at this immense work of art that greets arrivals to the city.

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

This grand hydraulic installation has provided water for townspeople since the Middle Ages.

Founded in 670, this ancient mosque is an architectural time portal.

Some believe this abandoned Brutalist masterpiece inspired George Lucas's Sandcrawler.

This museum in the famously blue neighborhood of Sidi Bou Saïd showcases a traditional Tunisian lifestyle.

The ancient heart of Tunis is an enormous maze of narrow streets and alleyways.

The largest and best-preserved Roman amphitheater in Africa was designed to seat 35,000 people.

An ancient Phoenician citadel once stood at the site where Queen Dido first landed, according to legend.

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

This small museum nestled inside a souvenir shop is dedicated to Sweden's most well-known toy.