Frida Kahlo's childhood home, now a museum of her life and works.

An island filled with hundreds of hanging, decomposing, decapitated dolls.

The attic of a four-century-old canal house hides a clandestine church.

A hidden tunnel leads to an abandoned slate quarry that's now a secret swimming spot guarded by cliffs.

Also known as "Leicester's Folly," this almost cathedral was left unfinished and in ruins.

The decaying ruins of Wales' first asylum for the mentally ill.

This mysterious wheel-cross is the tallest in Britain.

A little-known castle set in a nature reserve.

A turn-of-the-century prophecy comes true when a mischievous wooden Devil watches the neighboring church burn to the ground

This mural honoring a drowned village has become a symbol of Welsh pride and patriotism.

These precariously placed ruins harken back to a 13th-century castle.

This ancient abbey now lies in majestic ruin behind a caravan park.

The painting on an aptly named street honors the 1980s slasher movie.

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

This 1776 beacon on the coast of Wales is said to have a ghost called Raymond, the last lighthouse keeper.

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

This 19th-century island fort built to protect against an invasion by sea.

This Welsh hotel is the spiritual home of the British 1953 Everest expedition, the first successful ascent of Mount Everest.

Led Zeppelin wrote some of their most iconic songs at this little 18th-century Welsh cottage.

This 500-year-old Tudor home is a treasure trove of history and mystery.

A Neolithic tomb hidden among a spectacular boulder-strewn stretch of coast.

An impromptu shrine appeared shortly after beloved "Torchwood" character Ianto Jones was killed off the show.

The remains of a small medieval chapel mark the legendary birthplace of the patron saint of Wales.

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