The grave of Mary Nasson is shrouded by witchy legends.

This 19th century granite fortification is one of the most well preserved forts in New England.

A cavernous three-story, 43,800-square-foot basement that was forgotten about for 60 years.

The remains of a deserted 1800s farming community can be found in Little River State Park.

This large cemetery is known as the museum of granite sculptures.

This folk art dinosaur was almost pushed to extinction due to lack of a building permit.

The Vermont grave of a 4,000-year-old mummy prince.

A massive sustainable farm designed by the mastermind behind Central Park.

This "common-as-dirt" museum celebrates the glory of normalcy.

These mysterious petroglyphs in Vermont reflect a troubled history in the treatment of Native American culture.

Colin Stokes "got a bit carried away" and built a castle that looks like something out of Tolkien.

One of the largest bamboo bridges in Asia, located right next to a bamboo school.

Sections of the iconic limestone columns have been left uncleaned as a reminder of the city's polluted past.

Centuries before the modern seismograph, Armenian monks measured quakes with this tilting pillar.

The haunting complex honors the millions of Ukrainians who died in the forced famine under Soviet rule.

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

This campus chapel is Robert E. Lee's final resting place and a topic of debate about the legacy of the Civil War.

An enormous warehouse filled with parade floats collected from over 50 years of patriotic celebrations.

The Kirkland Monument remembers a selfless Civil War hero who braved the battlefield to give water to his dying enemies.

This statue is dedicated to Grace Sherwood, the last person in Virginia to be convicted of being a witch.

This stately building in Alexandria, Virginia was built by Freemasons to honor one of their most famous members.

The semi-reclaimed ruins of this canal were once part of an ambitious plan to reroute the mighty potomac.

Giant busts of 42 U.S. presidents are sitting in a field in Virginia.

This once-palatial plantation may have been the site where a draft of the Declaration of Independence was written.