During the reconstruction of this ancient church, the multiple layers of burials that it held were revealed to archaeologists

These bronze horses on the gates of the Royal Palace of Naples were a gift from a Russian tsar.

A special area of the National Archaeological Museum of Naples is located inside a metro station.

This medieval city gate is now a blend of the past and the modern world.

The remains of the left arm of the levitating philosopher-saint are kept in a 13th-century Neapolitan basilica.

In a city that boasts four separate inclined cable railways, this is one of the busiest funicular lines in the world.

Every day is like Christmas on this street where the traditional Neapolitan nativity scene comes to life.

These "anatomical machines" are only one of the many strange items in this Italian crypt.

Dug as a secret royal escape route, the tunnel became a wartime bomb shelter and dumping ground for vintage cars.

A labyrinth of ancient tunnels hidden below the city holds the ruins of 2,500 years of history.

This conceptual artwork might be the most disappointing attraction in Brussels.

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.

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.

A museum dedicated to a secret military hospital hidden beneath a castle in Budapest.

Museum dedicated to the terror regimes of Hungary.

Some of the greatest minds in the history of Hungarian art and science converged in this café.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

Invented in the mid-19th century, this machine could send copied images via telegraph lines.

Third time's a charm, or in this case, two testicles are.

A brutalist gem towering over the heart of Milan.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.