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.

The only road through the heart of Glacier National Park.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

Home to the deepest rift anywhere on Earth.

See massive fossils that are over 200 million years old in northeastern Arizona.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

The site of Paul Revere's historic two lantern warning.

Stolen goods adorn the organ at Old North Church.

This landmark cemetery in Boston was created more than 300 years ago.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

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

This headstone marks the grave of an 11-year-old boy killed during clashes in the streets over the boycotting of British goods.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

A typical "Old South" manor, once owned by author Anne Rice, served as the setting for several of her witchcraft sagas.

"the sweltering inhabitants of Charleston and New Orleans, of Madras and Bombay and Calcutta, drink at my well . . . The pure Walden water is mingled with the sacred water of the Ganges."

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

One of the longest water bridges in the world was built over a supposedly haunted swamp in Louisiana.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

A historic Montreal market that was the city's agricultural hub for over century.