Have fun at the world's first Buddhist waterslide park.

This Vietnamese hell cave lets visitors take a walk through a devilish underworld full of demons.

Twice a day a speeding train passes only inches from the homes of this residential neighborhood.

This spectacular bridge supported by two gigantic hands looks like something out of a fantasy universe.

Vietnam's feral abandoned water park offers access to a post-apocalyptic funscape, now with fewer crocodiles.

World's largest cave was only discovered in 1991, and now offers tours to the public.

The 19th-century pharmacy (now a used bookstore) was featured in James Joyce’s "Ulysses," and has changed very little to this day.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

One of Europe's oldest libraries.

Ancient Egyptian wigs, South American feather headdresses, a bounty of anthropological artifacts in Oxford.

An Oxford museum where visitors can have tea with the Mad Hatter and climb through the wardrobe to a fantasy land.

The remnants of a depressing public toilet are now a hub of ever evolving street art.

This enchanting hill is home to fairy lore and a sinister local mystery.

Scotland's only funicular railway is also the United Kingdom's highest.

This macabre monument atop an ancient well gives a nod to a brutal episode in Scottish clan history.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

A strange rock with a sinister reputation lurks within the crimson waters of this Scottish glen.

The fountain marks the area where hundreds of accused witches were burned at the stake.

A 18th century graveyard and its astonishing cortege of macabre iconography.

Tiny effigies of the victims of Edinburgh's famous Anatomy Murders.

This series of Scottish caves has no clear purpose other than baffling historians.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."