After years of being casually peed on by humans, this tree is peeing back.

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

This museum housed in a former brothel explores the past and present of sex work in Amsterdam.

A unique collection of gilded age mechanical pianos.

The world’s narrowest house makes for an awkward, four-foot-wide living space.

A hidden art gallery in an abandoned Warsaw fort.

A cableway for car transport.

The most visited, and possibly most controversial, museum in Germany.

A marvel of Byzantine engineering under the streets of Istanbul.

More than half of this Indian palace is drowned but it looks all the more spectacular for it.

Many Hindus make the long pilgrimage to this holy city to have their remains burned on the banks of the Ganges River.

360° views of the city plus five floors of optical illusions and hands-on science.

A golden plaque marks the site of the mysterious unsolved assassination of the former Swedish prime minister.