A 500-year-old series of tunnels long believed to be folkloric was uncovered beneath the streets of Puebla.

An elaborate Mayan city shrouded in alien conspiracy revealed the tomb of Pacal the Great.

Every equinox this Maya pyramid puts on a spooky ancient light show.

A lovers' beach, tucked below the surface of the island, provides a safe haven for romance.

Eerie ruins of an abandoned medieval fishing village crumble atop an unforgiving stretch of earth.

The oldest steel ship in Iceland has been beached for years and is now a rusting ruin.

This replica Viking village was created for a film that was never shot and is now open to visitors.

This modern monument to pagan belief looks like it was transported straight from ancient times.

An artist's mausoleum with a haunting echo.

The burning of this 12th-century church kicked off a campaign of Norwegian Black Metal terror.

An intricately carved Viking church overlooks a glistening fjord.

The convergence of two currents makes this a surprisingly pleasant getaway in the Arctic Circle.

Home to three historic ships from the age of Vikings.

A secluded art gallery hidden within the cellars beneath Tallinn’s medieval monastery.

This medieval Estonian tower provides access to a series of tunnels that have been home to soldiers, punks, and fine art.

The secret cells in the basement of the KGB's Estonian "Grey House" have been preserved as a grim Cold War museum.

Disused seaplane hangar gets a second life as the jaw-dropping home of Estonia's museum of maritime history.

Spend your honeymoon where the Devil had his wedding.

The gutted remains of this Estonian mansion are a monument to a tragic love.

This disappearing geyser has been attributed to witchcraft, but really it's all about rainfall.

The ruins of an Estonian prison are drowning in the quarry lake where the convicts were once forced to work.

"There's nothing there," and other lies the KGB told us.

Remains of a station that only operated for one year.

A monument to Lenin has been transformed into a statue of everyone's favorite black-helmeted, fool-choking Sith Lord.