This encrypted monolith protected a secret of Norse mythology by hiding in a church wall for over a millennium.

The ruins of a monastery where Saint Bridget of Sweden had her revelations recorded.

An Orthodox church built by the Royal Family for the Russian community exiled to the French Riviera.

This mountain trail inspired Nietzsche to complete his magnum opus.

A beautiful discovery site of prehistoric burials.

Hidden in an enchanting ravine, numerous mysterious sandstone grooves hint at ancient pagan rituals.

Stone carvings record the Norse myth of Sigurd, providing a glimpse into Scandinavia's transition from paganism to Christianity.

A tilted half-timbered house from 1672 is built into a salvaged segment of a medieval wall.

When you're a great Russian Tsar, even your vomit gets a statue.

A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.

Intricate metal sculpture that's half gothic cathedral, half construction equipment.