This Ukraine alleyway has become its own little island of forgotten things.

Padlocks cover this rickety footbridge with love.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

A muddy alien landscape that is home to rare species of exotic plants.

This fairy-tale castle would make Dracula (who is said to have been imprisoned there) jealous.

No one knows who built this strange cave of worship or exactly why.

A fantastical group of cliffside stairways, bridges, and twisting paths carved out of stone provide a surreal coastal hike.

This Japanese-inspired labyrinth of hot springs is hidden in a Chilean forest.

This odd Chilean waterfall-cano hotel must be entered via a rope bridge.

One of Chile's most active volcanoes is riddled with beautiful caves.