One of the oldest and most significant collections of Ancient Egyptian archeology outside of Egypt.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

A local student's chance encounter with Keith Haring led to the creation of one of Europe's largest murals.

Remnants of the most densely packed city in world history, that thrived on anarchy for 30 years.

A 125-meter long "tribute to the Brazilian people."

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

A Japanese concept restaurant that feels like a party thrown by the monsters in your closet.

This stunning Brazilian library contains the largest collection of Portuguese texts outside of Portugal itself.

Try not to get lost in this picturesque Brazilian labyrinth of the dead.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

The yawning maw of this pagan visage is said to bite off the hands of liars.

This former Roman Catholic Church still contains the embalmed hearts and organs of 22 popes.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.