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.

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

If you ever wanted to touch a medieval mercenary’s three testicles, look no further.

Five candy-colored villages on the Italian Riviera.

Perched above a grotto, this tribute to Mother Nature looks out into the ocean.

A sculpture serving as an homage to Pope John Paul II.

An ancient Egyptian obelisk is now used to commemorate fallen Italian soldiers.

Living fossils in this remote Australian bay provide a glimpse of what Earth may have looked like 3.5 billion years ago.

This Australian beach is composed of tiny shells.

Let these towering termite-building structures tell you where to go.