St George's Leprosy Museum depicts the gruesome afflictions of those suffering from the disease.

The last standing example of an ancient district's teatime tradition.

This head-spinningly bizarre Depression-era art cave is wall-to-wall quartz and Jesus.

This homegrown adoption center offers a wonderland of feline companionship.

Home to drunken tower-climbing goats... seriously.

Mysterious hillside with a continuously burning natural fire.

Home to nearly a third of the world's mud volcanoes, Azerbaijan is home to a messy, bubbling, and sometimes explosive landscape.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

An exquisite collection of fairytale conveyances that puts most car museums to shame.

An early Portuguese serial killer's head is alarmingly well preserved in a jar at the University of Lisbon.

An honorary saint of the people, Maria Adelaide became an incorrupt corpse, the clothes intact, exhaling “a strong scent of roses.”

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

The world's oldest bookshop still in operation.

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

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

There are plenty of wonderful panoramic vistas in Edinburgh, but not many are hidden smack in the middle of the Old Town.

A garden in Lisbon filled with giant porcelain creatures.

Cat art as far as the eye can see.