An Australian lake whose pink hue defies scientific explanation.

Australian Lake set aglow by Noctiluca Scintillans.

A collection of outdoor mystical statues paying homage to indigenous Australians and ecological stewardship.

Once the path of a railway tunnel, now home to thousands of glowing insects.

Play heads or tails with thousands of different coins.

One of the greatest collections of coins in the world is housed in the former mansion of an archeological pioneer.

This unusual sculpture depicts how coins were made when minting was done by hand.

Chronicling the history of Thailand’s unique currencies, from the silver “bullet money” to porcelain gambling tokens of various shapes.

One of the largest numismatic collections in Europe fell victim to a huge theft.

Late at night, the bust of the "Dracula" actor was snuck onto the facade of this Budapest castle.

A Hungarian optometrist's charming collection of Asian art and curiosities.

Hungarian Jews were ghettoized during the Second World War, but little remains of the original wall that closed the Jewish people off from the rest of the city.

One of the biggest Buddhist stupas in Europe, hidden from most locals.

These pretty kitties killed and ate as many as 135 railway workers.

Cat art as far as the eye can see.

A century-old tradition has culminated in a small but singular collection of feline effigies.

A kindergarten shaped like a cat with a tail that's a slide.

Once a prosperous mining village, this tiny Taiwanese town is now overrun with cute cats.

This homegrown adoption center offers a wonderland of feline companionship.

The island of Lanai in Hawai'i is a paradise for cats and cat lovers.

Lions and tigers and leopards, servals, pumas, bobcats, lynxes, and ocelots... oh my!

A curious little museum dedicated to the furry feline in the cat haven that is Old Town Kotor.

Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.

A unique zoological park home to over 30 species of wild cats, both big and small.