This spectacular bridge is part of an abandoned train line that once connected Mallorcan capital to the southeastern coast.

Crop circles inspired this whimsical garden in Germany.

A former Nazi lookout tower with a magnificent view of the Rhineland.

A black cottonwood gets a second life as a home for books.

One of the windiest peaks in Crimea is home to an incredible set of cable bridges.

A massive cross stands as the sole resident of this water-locked Crimean crag.

This vineyard was the site of the infamous Charge of the Light Brigade.

One of the cave cities of Crimea, built by the Goths in the sixth century.

The 14th-century ruins are said to contain healing powers.

These ruins of Francis Bacon's once-magnificent manor are hidden in the English countryside.

An abandoned canal route lies hidden under the streets of Manchester.

You can row a boat through this ancient underground reservoir.

Trek into the depths of the cave where 17,000-year-old paintings exist alongside 400-year-old graffiti.

A real-life "hobbit" cave in Flores, Indonesia.

An ancient chamber filled with wonderful rock art and a Neolithic carving of a human face.

The Stonehenge of Wales is one of the grandest neolithic dolmens still in existence.

One native village in Bali lays their dead at the foot of a holy tree whose natural fragrance seems to hide the stench as the bodies decompose.

Sacred waters rescued from the wrath of a volcano.

Bali's remote "gateway to heaven" is one of the most sacred places on the island.

The inky volcanic sand leads to reefs teeming with aquatic life waiting to be discovered by snorkelers and divers.

The world's newest astronomical clock is also its most accurate.

Countless stories attempt to explain Poland's mysterious J-shaped trees.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.