From motorcycles to firetrucks and sports cars to horse-drawn carriages, this Belgian collection goes beyond rare cars.

The private train station King Leopold II built for the Belgian royal family now lies abandoned.

Incredible labyrinth of man made caves.

Located inside Hoge Veluwe National Park, this museum began as the private collection of a prominent female art collector.

'The Letters of Utrecht' lays out a ribbon of poetry one letter at a time, with no final verse in sight.

Atop this former dutch railway office sits an interstellar work of art.

This Netherlands museum holds a gloriously mechanical collection of ornate musical automata.

The cutest way to stay safe in traffic.

A bridge that has seen many reiterations over its lifetime.

This hotel was once home to a steamliner company and became the final rest stop for Europeans heading to the New World.

Old ships and machinery fill a historic harbor in the city that's home to Europe's largest port.

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

The oldest skyscraper of Europe now stands dwarfed by the surrounding structures.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

A sublime medieval path adorns the marble floor of one of the most beautiful Gothic cathedrals in France.

A centuries-old complex of hand-dug stone chambers has sheltered locals in times of trouble.

This bunker in northern France was built by Nazi German forces with the intention of launching up to 50 V2 rockets at London each day.

An underground city of ancient quarry tunnels hid thousands of Allied soldiers in WWI.

Historic medieval fortified city in southwest France.

A medieval church with largest and oldest collection of Renaissance frescoes in France.

The world's tallest bridge is also possibly the most elegant.

The world's most famous cheese caves.

An effigy of a trapped paratrooper dangles from a Normandy church to commemorate one remarkable D-Day event.

The last Oostende trawler to fish off Iceland is now a museum.