Two geological phenomena in one precarious locale: a towering stone window, and a deep blue void.

Real bones which are said to have belonged to a Polish dragon.

An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

Wonderland replication in progress by one persistent man.

This cemetery features modernist statues as strange as its name.

Caves famous for the dragon-slaying saint who lived there.

An underwater restaurant, surrounded by a coral reef.

The once forbidden "secret cabinet" of erotic art from excavations of Pompeii and Herculaneum.

Ancient paintings known as the "Sistine Chapel of Cave Art."

400-year-old garden, restored to beauty.

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

An isolated village literally built into the crevices and rock formations of a mountain.

A beautiful maze marks where three countries meet.

This sword isn't waiting for a king to pull it out. It was placed there by a saint.

A surrealist timepiece by the artist of melting clocks.

Two monstrous faces loom over a village in Czechia.

England's oldest surviving hedge maze has been confusing visitors for over 300 years.

Dolphins, ancient clams and hundreds of waterfalls make this one of the world's top tourist destinations.

Once thought to be the mysterious work of a witchy prophetess, a well with unusual properties turns objects into "stone".

One of the most popular megalithic sites in Ireland stands as a humbler version of Stonehenge.

A collection of objects supposedly singed by the hands of souls in purgatory.

Trick water gardens from 1619 featuring a 200 piece mechanical theater powered by water.

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.