The legendary building that needed ghostly approval before being built.

Commonly referred to as the most photographed Victorian home in the United States.

A simple plaque remembers a California island massacre that claimed more than 100 lives.

This high desert botanical garden is a unique display of New Mexico’s ecology and culture.

This museum started as a collection of Manhattan Projects and continues to add exhibits as they are declassified.

This once-controversial and slightly confusing statue of Achilles was built out of captured cannons.

The tomb of Increase Mather and his son Cotton, influential colonial ministers obsessed with the occult.

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

A fascinating little museum all about the rich history of Peru’s famous plant.

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

A painting in the historic Cathedral Basilica depicts Jesus and his disciples dining on a traditional Peruvian menu.

Situated on a sacred Inca site, this 16th-century cathedral took nearly 100 years to build.

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

Did Inca children also slide down these smooth rocky slopes above Cusco?

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

A barbarous band of serpents guard the bases of these Aztec temples.

Death rituals and sacrifice inside a Peruvian megalith.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

This Peruvian canyon is filled with geometric salt pools that have been being harvested since the Incan empire.

Huge stone depressions which may have acted as an Incan agricultural experiment.

Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

One of the few places where you can visit a cenote and Maya ruins at the same time.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

At 130 years old and 126 feet tall, it is the largest known example of the rare Torrey pine tree.