Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

This Costa Rican topiary park is a surreal garden of unearthly delights.

On the outskirts of a desert trading village high on the Andean plain, steel giants have been destroyed by salt winds.

Popular tourist destination where witches in dark hats sell dried llama fetuses for good luck.

A seemingly endless landscape of pure salt stretches far across Bolivia.

The innovative Nigerian floating school that may just be a glimpse into the future of design in a world of troubling climate changes.

An ancient Ethiopian cave church is endangered by the simple building of a road.

An ancient capital city that dates back 3,000 years and harbors many surprises.

Macabre astrological automaton clock dating to the late 1400s.

A forgotten monument to Yugoslavian freedom.

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

A misnamed well, with a deep dark past.

Nikola Tesla's ashes are held in a golden sphere, surrounded by his works.

This ironic war memorial thumbs its nose at a campaign of inedible humanitarian aid food products.

A number of craters left by fatal mortar strikes have been filled with red resin to remember those lost during the Siege of Sarajevo.

The place where World War I began.

This historic timepiece is thought to be the only public clock in the world that keeps lunar time.

This scale model of our solar system hid in plain sight for years before a physics team sought out all the planets.

Where the lovelorn find a home for their sentimental keepsakes.

Controversial site of what could be Europe's first pyramid.

Celebrated example of Ottoman architecture that also served as a site for brutal massacres.

This brutalist monument is inscribed with 9921 names of Yugoslav partisans who perished during WWII.

This stunning, out-of-the-way Croatian monument commemorates a community's uprising against occupying fascist forces.

Croatia's towering concrete blossom grows from the site of a World War II concentration camp.