These azure waters were thought to lead to the Mayan Underworld.

Everyone remembers Laurie Strode from Halloween, but this is the house where most of the blood was shed.

The remains of the first punk club in L.A.

A library of rare occult books in Los Angeles.

Resting place of Hollywood's immortals is also site of summer film screenings.

Medical and zoological curiosities for sale.

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

A Hungarian pharmacy museum with a box full of mummy powder.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

Finland's northernmost zoo is home to the country's only polar bears.

This intricately spiralling forest was created as a monumental work of art.

The church's remarkable frescoes incorporate Finnish artist Hugh Simberg's trademark themes of death and the supernatural.

This hanging crocodile is thought to be the "dragon" that once plagued a Czech city.

An Orwellian sculpture with eyeball cameras watches passersby.

A collection of anatomical samples from one of the first anthropologists to suggest that humans reached North America by crossing the Bering Strait.

A Jenga-style cylindrical tower of books that appears to go on forever.

A museum of alchemy and a basement laboratory all housed in an ancient building in a Gothic tower.

The hidden lair of an alchemist rediscovered in a 2002 flood.

Two stunning 17th-century libraries and a cabinet of curiosities.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

Siberian whale bones stand as cairns marking location of an ancient butcher yard.

This cuddly rodent has a place of honor at a Russian institute for genetic research.

Unusual, mushroom-like rock formations caused by weathering and water erosion, set to disappear, according to geologists.

The reason for the strange contortions in the trunks of these "drunken" pine trees in Russia is still a mystery.