The oldest operating pharmacy in the world features 800-year-old recipes.

A 16th-century horror show built in a lovely Italian garden.

2300-year-old Roman road connecting the empire.

Rome's semi-secret peephole vista is also a former Crusader stronghold.

Architectureal fantasy quarter of Rome.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

Every equinox this Maya pyramid puts on a spooky ancient light show.

Where dogs like the rare "Fire-Tailed Border Cocker" run free on the mountainside.

Central America's deepest lake is actually a volcanic caldera, surrounded by three volcanoes.

One of the world’s most colorful cemeteries, where each pigment is symbolic.

Hidden deep in the Guatemalan jungle is a turquoise paradise of natural pools, caves, and waterfalls.

Sparkling, calcite-covered skeletons of children who may have been sacrificed to appease an angry god.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

Elevated freight railway turned wildly successful urban park.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

The fairy tale castle of the "fairy-tale king."

Most-visited and most-photographed slot canyon in the American Southwest.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

A chilling monument to Korean patriots who resisted the Japanese occupation.

In a strange timezone anomaly, Daylight Saving Time here sets the clocks forward just 30 minutes.