A tower devoted to — and modeled after — the Divine Comedy.

A mysterious architectural gem in one of the most elegant areas of Buenos Aires.

The Estatua de la Libertad stands discretely on an obscure tangent path in Barrancas de Belgrano.

This tiny cottage surrounded by railroads is the oldest surviving structure in Fairmount Park.

Ancient serpentine sacrifice holder that has stood the test of time.

A small etching on the white marble parapet was written in runic script by a Viking mercenary.

This column celebrates Rome's victory over the Goths, and may be the oldest Roman monument in Istanbul.

A Mexican Romeo-and-Juliet-esque legend has given this super-narrow alleyway a reputation for romance.

An incredible collection of Mesoamerican art assembled by one of Mexico's great artists.

Mysterious and ancient carved standing stones.

The most southern point you can drive to in the Western Hemisphere.

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

Conifers from the Jurassic Period transformed into stone in Patagonia.

Stenciled handprints and wall paintings dating back 10,000 years, some of the earliest forms of cave art.

Massive rock sculptures formed during the time of the dinosaurs still stand undisturbed.

A memorial to the victims of Argentina's "Dirty War."

This historic, palatial theater is now one of the world’s most beautiful bookstores.

With its vast selection of books, comics, and records, this nearly 70-year-old open-air market always rewards the patient browser.

A vast necropolis where you'll find the elaborate mausoleums of Argentinian tango stars.

The humble tomb of an Argentine general, hand-built by his son using stones brought down from the Andes.