A rare surviving Victorian greenhouse designed specifically to house giant water lilies.

These warring psychedelic crags commemorate an unsuccessful military operation.

Where the lovelorn find a home for their sentimental keepsakes.

An ancient knight and a symbol of the city's freedom.

An Albanian monument to the Communism that nearly crushed the country is now a crumbling wreck.

Nikola Tesla's ashes are held in a golden sphere, surrounded by his works.

An ethereal glowing blue ocean cave in Croatia.

Each year melting snow turns these Austrian hiking trails into scuba zones.

A whimsical bridge adorned with decorative dragons.

Island wonderland for communist autocrats.

Humble beginnings for one of the world's most famous scientists.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

Yugoslavia's biggest underground airport lies in ruins.

A forgotten monument to Yugoslavian freedom.