This 6th-century church honors St. Tudno, the patron saint of Llandudno.

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

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.

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

This well-preserved Cistercian Abbey in a romantic pastoral setting has inspired artists like the poet Wordsworth.

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.

The worst flood disaster in Welsh history might have been a lot worse if it had not happened on movie night.

This ancient castle has been abandoned since the Edwardian conquest of Wales.

The oldest continual pilgrimage site in Britain was supposedly created by a gruesome beheading.

This park is home to a collection of important industrial and religious sites.

This mysterious wheel-cross is the tallest in Britain.

Roman ruins found on the outskirts of a small town on the North Wales coast have over time become a strong part of the community's identity.

The chefs at El Diablo use heat generated by an active volcano to cook the food.

The mummified relics of an American missionary.

Holding the most bodies of any cemetery in the United States.

Manhattan's lighthouse, erected at the insistence of the unsinkable Molly Brown.

The only home that Alexander Hamilton ever owned has a history almost as troubled as his own.

A dark, dank room in subterranean Manhattan was the site of a ghastly murder.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

The final resting place of the great escape artist, where some still gather to wait for his escape from death.

An unassuming secret door once led to a legendary watering hole.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.