A partial tunnel blasted into a steep ridge is all that remains of a failed railway across Arizona.

A nature and cultural preserve named for its multitude of petroglyphs carved by the Northern Sinagua people.

Limestone caves with spectacular showcase chambers.

Thousands of Mexican Free-Tailed Bats soar around an abandoned storm drain at sunset each summer.

Ancient pueblos built into the base of a natural canyon wall.

The story of Two Guns, Arizona could easily be described as a Shakespearian tragedy on Route 66.

A reproduction of earth's many biomes.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

Bouncing, delightful, mechanical art at the MIT Museum.

This Cape Cod museum exhibits what it claims is the only authenticated pirate treasure in the world.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

This historic graveyard monument is dedicated to a tragic victim of witch trial hysteria.

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

The Mysterious Witch Bonney, a haunted statue in an old industrial city.

Located just behind a quiet residential neighborhood, this is ground zero for the Salem witchcraft hysteria of 1692.

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

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

This former Masonic hall has been turned into an art project that uses even more metaphysical iconography.

Three prestigious academic collections come together to create a world-class natural history museum.

Long abandoned underground complex to keep royals safe from a nuclear war that never came.

A nuclear bunker built to shelter the politicians and important people of Scotland in case of nuclear attack.

The second oldest continuously operating bar in Louisiana.

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

Rochester's signature culinary delicacy.