The largest flower auction house in the world.

The attic of a four-century-old canal house hides a clandestine church.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

A beautifully eclectic mix of architectural styles.

A beautiful maze marks where three countries meet.

Most prolific publishing house in the 1600s open to the public.

Christ's blood allegedly preserved in a Belgian town.

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

Each time a baby is born in Ghent, these streetlights flash in silent celebration.

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

A little sculpture with a large wardrobe.

Three floors of musical instruments coming from all corners of the world and hundreds of years of musical history.

Three columns of volcanic rock shoot out of the ocean.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

A formerly glacier-tipped volcano that inspired none other than Jules Verne.

This black church sits alone among a field of lava rock.

This collection of unique liquids allows visitors to wander the waters of Iceland's glaciers.

A sulfuric martian landscape that looks far better than it smells.

Medicinal spa created from the mineral-rich runoff of a geothermal power plant

This scenic Icelandic lava flow is named for a pair of Berserkers who were murdered, according to a famous Saga.

This tumultuous Icelandic lava field looks so alien European researchers want to use it as a stand-in for Mars.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.