This building was once the most magnificent mansion in Nafplio.

A staircase made of gravestones leads up to this church built into a giant rock.

This slumbering beast honors the Bavarian soldiers who died in Greece during a 19th-century typhoid outbreak.

One of the largest single-span stone-arch bridges in the Balkans looks like something straight out of a fairytale.

Quite simply the largest tree in the world (by volume).

Despite being pillaged and destroyed a number over times down the centuries, this historic church still sort of stands.

For hundreds of years, automatons moving to metallic music have been marking the passage of time.

This network of roads is one of the most unique Etruscan creations ever discovered.

A historical puzzle lies at the origins of this structure.

Atop this electronic store resides a massive fighter jet.

The remnants of a WWI naval mine that once terrorized the country now decorates a street.

A massive explosion that leveled hundreds of buildings in the city of Leiden is remembered by a waterside plaque.

The works of poetry's biggest names grace the walls of the city of Leiden, all carefully painted by hand.

People have been placing babies on these lilies for photoshoots since the Victorian era.

A 'living museum' in Leiden, the oldest of its kind in the Netherlands.

An ancient Egyptian temple sits within a modern European museum.

Amsterdam's former hotspot for public executions and dissections.

The ruins of a medieval castle that once belonged to one of the most powerful families in the Netherlands.

The Bloemen Route, or “Flower Route”, stretches 25 miles through prime Dutch tulip country as a result of “tulip mania,” the world’s first economic bubble.

A journey through 430 years of bulbiculture in the Netherlands.

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

This former hydraulic laboratory is now a woodland dotted with old engineering models.

Repurposed space and ultra-modern construction collide to create this geometric wooden spectacle.

This small town in the Netherlands has no roads but instead, miles of canals and over 100 bridges.