A trio of giant wooden megaphones turn up nature's volume in this Estonian forest.

Hundreds of small crosses have been carved into the bark of the trees outside this small Estonian village.

The European Union’s tallest freestanding structure provides radio and television broadcasting to half of Latvia.

In the middle of a Brussels roundabout, a cargo container balancing on its edge.

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

A little sculpture with a large wardrobe.

From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.

Climb inside an iron crystal magnified 165 billion times its normal size.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

A man throwing a giant severed hand towers over Antwerp’s main square.

The patron of this extravagant Art Nouveau confection insisted that nothing less than a boat should project from its facade.

This narrow Ghent alleyway is an officially sanctioned street art tunnel.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

Christ's blood allegedly preserved in a Belgian town.

The world's most active stratovolcano is almost always erupting.

A mysterious ancient elephant said to possess magic powers is now the symbol of a Sicilian city.

This Arabesque Italian castle was built with a primitive, if ingenious, air-conditioning system.

This triumphal 16th-century arched gateway leads to the oldest street in Palermo.

Every inch of this chapel is covered in craftsmanship from across the world.

Behind medieval walls in a corner of bustling Palermo is a breathtaking former mosque once inhabited by a wolf-taming hermit.

Thousands of well-dressed mummies below a monastery.

This entire town moved to a safe location after it was devastated by an earthquake, but the remains of the original town are still around.