Manchester's abandoned train depot lingers in a post-industrial purgatory.

Prehistoric sandstone menhir with Early Bronze Age cup and ring markings, also known as Robin Hood's Stone.

Much of what constituted mid-century Liverpool now litters a beach outside of town.

This ossuary is more than five centuries old and is heralded as one of the finest in Switzerland.

The deepest metro station in the world.

This "tower of death" has acted as an observatory, a religious hub, and an executioner's lair.

The Avenue of Mausolea is a series of grand palatial tombs.

One of the most ethnically diverse spots on the planet.

An outstanding piece of retro Sci-Fi architecture built into a sacred mountain.

Dedicated to a Bolshevik revolutionary, this museum is a true time capsule of the Soviet era.

This retro, UFO-like structure is a remnant of the Soviet-era circus.

Built entirely of interlocking pieces, construction of this Chinese Muslim house of worship required zero nails.

This mysterious complex of abandoned yurts and fading murals was meant to be a center of science and spirituality in Kyrgyzstan.

This sprawling market is a one-stop shop for traditional Kazakh foods, from mare’s milk to sheep’s head.

In Kazakhstan, a colorful cathedral with many lives once survived the most powerful earthquake in the region.

This Soviet statue is based on a piece of propaganda that's been elevated to national myth.