A striped 12th-century basilica sits in the countryside of Sardinia.

This bustling Italian plaza is built on the ruins of an ancient Roman amphitheater.

See what remains of a once grand ancient Roman circus.

This giant middle finger statue sends an unambiguous message to Italy's bankers.

Milan's duomo is covered in beautiful carving including a curious "dinosaur-like" beast.

A brutalist gem towering over the heart of Milan.

Two very green residential towers cleaning the air in one of Europe's most polluted cities.

The city of Parma's cathedral is home to one of the greatest illusionistic frescoes of the Renaissance.

One of the world's largest swinging bells is a symbol made from the melted aftermath of war.

The seat of the Mantua bishop holds many secrets within its walls.

It took more than 300 years to build this church, which is home to two sacred vessels believed to hold the blood of Christ.

A hidden bas-relief of a hare on a church main portal that brings good luck to the ones who find it.

The oldest church in Mantua was buried for centuries under the facades of other structures.

A room filled with frescos that make it seem like the walls are crumbling down while giants die in despair.

An architectural oddity where the triglyphs of the courtyard of walls create an optical illusion.

The easternmost town in Alaska can only be accessed from Canada.

This secluded village in the Andean wilderness can't be accessed by road.

The inspiration for the Patagonia Clothing logo, Cerro Fitz Roy turns pink at sunrise.

This stunning mass of ice spans 121 square miles and is still growing.

An Inca spa, military outpost or maybe… both?

A Christian monastery stands on what was once a holy Incan temple.

This geometric feat is a testament to the Incas' mesmerizing architectural abilities.

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.