The villagers of the coldest inhabited place on Earth adjust to unique challenges presented by day-to-day living.

Stunning examples of Russia's 18th-century wooden architecture.

This elegant arc of a waterfall marks a religious turning point.

A white Buddhist temple with a golden restroom.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

Sitting on an Italian hilltop is this surreal fortress built by the mad inventor of electrohomeopathy.

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

This Croatian fairytale castle is slowly falling apart thanks to years of neglect.

Some of the best-preserved specimens of the monumental medieval tombstones found throughout Bosnia and Herzegovina.

Unchanged for centuries, this medieval library keeps its books in chains.

The remains of the last Bosnian fortress to fall to the Ottomans are still standing.

This museum preserves the hand-dug tunnel that kept Sarajevo afloat during the Serbian siege.