Ancient serpentine sacrifice holder that has stood the test of time.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

1513 Turkish world map, full of European state secrets and snarky commentary.

The largest Neolithic ruins in the world hide a notably clean prehistoric metropolis.

The deepest underground city in Turkey was designed to protect 20,000 people behind massive stone doors.

Live a night as a Byzantine King, with a minibar and private jacuzzi.

A marvel of Byzantine engineering under the streets of Istanbul.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

This two-towered gateway is all that remains of the unluckiest pier in the world.

Several land speed world records were shattered at this Welsh beach.

Go back 50 years with a turn on one of the park's carefully restored vintage fairground rides.

A tiny village in Wales claims the name of a noble medieval hound slain for a crime he didn't commit.

A spiral staircase connects the limestone cave with Pembroke Castle, birthplace of King Henry VII.

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

A wildlife paradise, this island is one of the world’s most important habitats for burrow nesting seabirds.

The remains of centuries of copper mining appear like an alien landscape.

This Welsh village gave itself a ridiculous name in a publicity stunt a century ahead of its time.

The Stonehenge of Wales is one of the grandest neolithic dolmens still in existence.

A hermit's tiny cell built into the cliffside that saved him in South Pembrokeshire.

The stately remains of Llywelyn the Great's mighty fortress.

A miniature Italianate fantasy village on the coast of Wales and the set of ITC classic "The Prisoner."

A subterranean playground in an abandoned slate mine.