This kiln was erected to produce charcoal for gas producer units during World War II.

Bits of flat terrain surrounded by cliffs make one of the most beautiful landscapes in the Azores.

Colorful mineral deposits turn these mountains into an Impressionist fantasy.

This controversial monument was designed to lionize the Red Army, but also disheartened the Latvian people.

This small island off the coast of Uruguay hosts the largest colony of sea lions and fur seals in the southern hemisphere.

Hidden up a dusty track off the Georgian Military Road is this fascinating waterfall with mountainous views.

A small house sits between two huge rocks, with its back to the sea.

This creepy, abandoned cemetery is all that remains of a once booming mining town.

This abandoned mining village was predicted to resist decay longer than any other modern human settlement.

A failed infrastructure project now owns this unique moniker.

This underwater sculpture park is the basis for a manmade coral reef.

A stargazing sculpture made from the ruins of an iconic telescope.

The oldest remaining authentic Putt-Putt course that Donald Clayton created in Ohio.

Built by a king and rebuilt by an emperor, this aqueduct transported water for 1,200 years to this ancient Mediterranean hub.

In the 19th century, this pit housed a fully grown black bear for the entertainment of visitors. Today there is a sculpture in tribute to the poor creature.

This sturdy, circular stronghold served as one of the forts that protected the Venetian Lagoon.

This glass skywalk offers vertiginous views down the volcanic cliffs to the beach below.

This remote island, home to the easternmost point in Denmark, once hosted pirates and a military fortress.

The roof of one of the world’s largest spice markets provides a grand view over the neighborhood's glorious bustle.

Crafted in 1911, this steam locomotive spent its entire working life in Flagstaff.

The longest canal aqueduct in England was built without a plan to get water past the moving boats.

This 150-year-old train station and caboose have been turned into a railroad museum, enjoyed by young and old alike.

Passengers are not allowed to set foot outside this station, but you can still enjoy spectacular views of the sea from the platform.

This vibrant side road in Doha was painted light blue to reduce heat.