Conspiracy theories and occult legends surround this mysterious natural rock formation.

Once the legendary capital of the Dacian Kingdom, this city has been reduced to mere ruins.

This 22-floor tower's Skydeck offers panoramic views of Amsterdam.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

Sofia's legislative center is continuously reinventing itself.

The remarkably well-preserved final resting place of a powerful ancient Thracian king.

In a long-dry lake bed, these groups of massive stone pillars bear a striking resemblance to clumps of everyone's favorite fungi.

This elaborately decorated, fairytale-like Romanian royal palace is one of the most striking castles in Europe.

An extensive collection of reliquaries containing the bones of saints housed in the largest Catholic church in Venice.