The controversial final resting place of the equally controversial first president of Turkmenistan.

Where Stoddart and Connolly suffered in the infamous Bug Pit.

Final palace complex of the last of 29 Kokand rulers.

These "50 Fortresses" have been unearthed in the ancient oasis of Khwarezm.

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

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

Glacial lake that mysteriously empties itself every year.

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

One of the few surviving street funiculars in the world.

The castle still holds traces of the abandoned Roman fort it was built atop.

The largest of only eight working transporter bridges left in the world.

The world’s only museum dedicated to baked beans.

A 19th-century funicular railway shuttles visitors up this surprising sea cliff to one of the world's largest camera obscuras.

The enormous earthwork sculpture honors the ponies that lived and worked in the old colliery.

Recently restored menagerie of Victorian-era beasts.

The longest and tallest aqueduct in Britain can actually be sailed across.

After years of slow decline, a derelict Gothic castle is now being restored to life.

A former fisherman's hut deemed too small for habitation is now a delightful tourist draw.

Picturesque ruins once held off mighty armies.

A real-life Professor Snape once taught in this Welsh university building, which students of course nicknamed “Hogwarts.”

The world's largest prehistoric copper mine had 30,000 animal bones scattered throughout the maze of passageways.

This lonely cast-iron structure is the only wave-washed lighthouse of its kind left in all of Britain.

This Roman amphitheater is said to be King Arthur's legendary Round Table.

High Victorian fantasy created a fairytale castle out of a ruined fortress in Wales.