For six months of the year, three giant mirrors direct a pool of sunshine onto this otherwise occluded town.

This abandoned five-star hotel is now a five-star urban exploration destination.

This extraordinary, multi-pillared monument depicts the fascinating history of Georgia.

Underground monastery and fortress.

A museum glorifying the life of Stalin, located in the city of his birth.

Fortified homes of highland warriors that are still in use today.

A cluster of historic bathhouses built on the famed hot springs that gave the Georgian capital its name.

Small church on top of a huge rock column.

An underground city of salt.

This quaint Italian town keeps losing ground as the sides of its plateau slowly erode.

This salt marsh in Southern France is as pink as the flamingos that inhabit it.

The hike to this stunning waterfall on a black sand beach is not for the faint of heart.

A breathtaking viewing platform over the Alps.

Norway has built what may be the world's most beautiful public toilet.

The very center of Paris is surrounded by a bevy of strange good luck rituals.

This Belgian theme park began as a refuge for bored church children and was closed down when a boy lost an arm.

The vast chamber inside this abandoned cooling tower looks like something out of a sci-fi dystopia.

Abandoned since 1998, this train station has become an oasis for urban explorers.

Stocking up on the world's best beer requires a pilgrimage to a monastery drive-through.

An early 20th-century sanatorium, long abandoned and now being reclaimed by nature.

This memorial museum chronicles the apocalyptic destruction of the First World War.

A moving memorial to the fallen and missing from WWI trenches.

A Cold War command center is hidden under an idyllic countryside.

The site where one of the most famous poems of World War I was composed is preserved to honor the legacy of the work.