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

A mammoth pair of Civil War artillery guns abandoned out in the forest.

This picturesque lighthouse at the edge of the Irish Sea looks like a giant stone pencil.

A beautiful multicolored mound formed by the mineral deposits of the Orenda Spring.

This Boeing KC-97 tanker is now a restaurant for aviation lovers.

Transport yourself to the 1980s era of video games at this themed restaurant and bar.

South Korea's largely symbolic, barely used gateway to the North.

A chance to sleep among the firs and pines of the Oregon forest.

The tiniest tiki room in San Diego.

This strategically placed hill fort has served defensive forces from the Iron Age up until the 20th century.

A holy well supposedly infused with a saint's spirit flows within this quaint chapel.

An antique narrow gauge railway line still running through the Colorado and New Mexico mountains.

No one is quite sure of the origins of these idyllic natural hot springs at an abandoned mountain resort.

One of the last full-orchestra recording studios in New York City and an acoustical marvel.

A beautiful lighthouse with as many steps as days in the year, as many windows as weeks, and as many levels as months.

A little marble compass above George Washington's (empty) tomb in the Capitol marks where D.C.'s four quadrants intersect.

A one-armed veteran of the Battle of Waterloo lies in a cemetery for one in the middle of a Chicago scrapyard.

An old train trestle re-imagined as an Egyptian obelisk.

Stretching almost 2,000 feet, this painting is one of the longest pieces of Buddhist artwork in the world.

A spoke-tacular artwork constructed from recycled bicycle rims.

A secluded natural oasis hidden deep along a rainforest trail.

Long-forgotten artifacts give incredible insight into New York's most glamorous hotel.

A tribute to a Ukrainian heroine who went undercover and killed several Nazi operatives.

A former bank seized as a sniper vantage point during the Bosnian War is now a secret graffiti art gallery.