A limestone wonderland of water and subterranean secrets.

Walk through depictions of the torture inflicted on those who go to Buddhist hell.

Stunning wetlands ablaze with pink lotus flowers.

One architect's organic, human-centric design has been fully realized in this alien art house.

Artist's eccentric property excessively decorated with found objects and work of his own.

For those late-night mollusk cravings.

Bordered by forest on three sides and the ocean on the other, the Great Dune of Pilat is the highest sand dune in Europe.

This tiny river island switches sovereignty every six months as part of a rare, centuries-old agreement.

A small church ornamented with medieval erotic sculptures.

This Navarrese cave's history of witchcraft and pagan ritual is not just embraced, but recreated each year.

A medieval village holds a very modern hotel.

These "anatomical machines" are only one of the many strange items in this Italian crypt.

Bold black and white motifs of life and death add a dramatic flair to this 17th-century crypt.

The mortal remains of an estimated 70,000 people lie in the basement of a monastery in Lima, Peru.

Skulls from the plague of 1656 and World War II bombings are united by a cult dedicated to caring for the ancient dead.

Burial grounds for more than 1,000 bodies deep under the modern town of Rabat.

The real place where the One Ring to rule them all was forged.

This quirky collection is an interactive exhibit crammed with creative contraptions and tinkered-with toys.

After the devastating 2011 earthquake, historic Christchurch begins to recover, starting with the pop-up Re:START mall.

A lakeside garden in the Southern Alps full of whimsical artwork and thousands of beautiful flowers.

Modern art meets modern convenience in possibly the world's most architecturally important public bathroom.

The explorer Captain Cook may have named it White Island, but the Maori call it Te Puia o Whakaari – The Dramatic Volcano.

New Zealand's epic shrine to all things puzzling.

The premier place to experience the Victorian imagining of the steam-powered future.