Giant WWII fortresses that fired 8,000 rounds a minute, now home to thousands of pigeons.

Legends surround an ancient tree trunk riddled with nails for good luck.

A former top secret nuclear fallout shelter now operates like a hotel stuck in the Cold War.

In the past, Renaissance sex workers were encouraged to entice customers on this bridge.

This strange statue depicts a young boy's body with an adult Mozart's head and a single wing.

This hanging crocodile is thought to be the "dragon" that once plagued a Czech city.

A peculiar clock commemorates a historic victory won by ringing the noonday bell an hour early.

A cheeky architectural easter egg.

This abandoned Slovenian military barracks has become a punky-political art squat.

In between two buildings in Ljubljana, medieval tunnel to nowhere.

A whimsical bridge adorned with decorative dragons.

A public work of art that also provides some relief from the summer heat.

A trough of 700 strange bronze faces runs through a narrow alley in Ljubljana's old town.

The marble facade hides a little-known medical museum with early surgical instruments and rare copies of canonical texts.

Go inside to really appreciate this 500-year-old technological masterpiece.

Two stone columns flank the grand Venice square, but there were supposed to be three.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

The pile of books behind the dignified writer gave the statue a most undignified nickname.

100 year tradition of fist fights, marked by marble footsteps.

According to tradition this is the oldest church in Venice, but its actual age is a mystery.

This historic square in Nepal is home to temples dating back to the third century.

The former stronghold of the Malla Dynasty has remained virtually unchanged since the 17th century.

Sacred Buddhist home of some spiritual monkeys.

At the entrance of this chapel is a fresco commemorating the dead from the plague outbreak of 1630.