The former private quarters and office of Dr. Sigmund Freud now hosts a museum housing the works of the founding father of psychoanalysis.

Op-art architecture designed for happiness.

The ancient settlement attracts tourists from all over looking to learn about the Chinese vision of the afterlife.

The history and future of cannabis.

Three-story concrete ram with a permanent gift shop.

Roadside attraction outside of a recycling center.

One of the first big sculptures anywhere in Australia.

The most famous location in China was home to whole dynasties worth of imperial rulers.

Teeming with illegal goods and services, this towering maze of vice is also a popular tourist accommodation.

An collection of Chinese propaganda posters from 1949 to 1979.

This psychedelic tourist trap is a leisurely descent into madness.

Singapore's landscaping project is home to 18 incredible Supertrees.

A Buddhist theme park brings you a Buddhist version of Hell.

Macabre astrological automaton clock dating to the late 1400s.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

A church of bones, decorated with 40,000 human skeletons.

Elevated freight railway turned wildly successful urban park.

An artist's cute bronze subway sculptures belie his violent artistic past.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

An old department store turned Nazi prison turned artist commune.