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

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

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

A hidden gem in the middle of the city's infamous Jewelry Quarter.

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

The names Lúthien and Beren can be found inscribed on the shared grave of the famous writer and his beloved wife and muse.

Once one of the largest rooms full of books in the world, this bookstore basement is still a treat for bibliophiles.

The rotting skeleton of a shoreside fun fair that was destroyed by fire and storms still haunts the Brighton ocean view.

The church is gone, but the graves and legends remain.

The last occupied troglodyte dwellings in England weren't abandoned until the 1960s.

This whimsical, unique clock has been entertaining shoppers for well over 20 years.

Many Hindus make the long pilgrimage to this holy city to have their remains burned on the banks of the Ganges River.

Known as the leaning temple, the sacred structure has somehow developed a severe nine-degree slant.

This opulent 16th-century Maharaja’s palace is a unique mix of Hindu and Muslim designs.

More than half of this Indian palace is drowned but it looks all the more spectacular for it.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

Where an entire elephant skeleton, a snakeskin table runner, and thousands of animal remains become art.

A white Buddhist temple with a golden restroom.

This extensive collection of dead bugs may be the world's most idiosyncratic and personal insect museum.

5,000 skulls in memorial to those killed by the Khmer Rouge.

Khmer Rouge's high security prison.

One of the biggest markets in Asia, under one of the continent's largest domes.

This impressive clifftop temple was once at the center of an international custody dispute.

A battle between nature and architecture in the Cambodian jungle.