The mysterious "Candelabra of the Andes" could represent anything from a god's trident to a hallucinogenic plant.

The unique collection often goes unnoticed by visitors focused only on the archaeological objects.

Many people don't realize there’s a lot going on in—and below—the world’s tallest triumphal arch.

Western Europe's only representation of a Roman goddess still in its original location sits in an unassuming park.

Bioluminescence in the reefs of the Maldives causes the sea to glow like a starry night sky.

At the United Kingdom's only residential library you can sleep among the books.

The worst flood disaster in Welsh history might have been a lot worse if it had not happened on movie night.

These remarkable cascades are the jewels of Upper Tees.

After the band included its number in one of their songs, the box became a monument to the musical group.

Charles Dickens described the concert room in this amazing Victorian hall as "the most perfect room in the world."

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

A rare wooden coffin set vertically into the Gothic arch of an ruined church.

A 168-foot tower, part of the abandoned Chester Leadworks facility.

A mysterious demonic figure peers down from its perch within the gorgeous Chester Cathedral.

Most of Britain's gold reserve was secretly stashed here after the start of World War II.

The grand complex of buildings that comprise Liverpool's Exchange Flags includes a vast World War II bunker that has been frozen in time.

This intriguing Bronze Age artifact spent centuries hidden within a Welsh faerie hill.

This museum houses two of Mexico's most impressive Aztec monoliths.

This local emblem is the oldest and largest dragon tree in the Canary Islands.

The second-longest pier in the U.K. stretches a whole kilometer into the Irish Sea.

An engineering error ensured this cavernous 350-foot-long subterranean thoroughfare was never used as intended.

The ruins of the bathhouse used by the ill-fated last Aztec emperor still lie in Chapultepec Park.

The sophisticated hydraulic system of the Nazca civilization.

Known as the "Stairway to Heaven," this historic canal dates back to the 1700s.