The Thai Army has dug deep trenches along the Thai/Myanmar border to prevent drug smuggling.

A Buddha-filled cave that is named after a giant monster spider.

Myanmar's Mount Olympus atop a 2,500-foot volcanic plug.

The island that holds the world-record for largest human massacre caused by animals.

This lookout tower built in the 1930s is now an in-demand cabin with what might be the best view of the Seneca State Forest.

A glimpse into the sacrifices of military members during World War II.

This grave marks the final resting place of a legendary frontiersman... unless it doesn't.

Origin of the blue-skinned Fugates of eastern Kentucky.

A cult archaeology conspiracy theory claims these West Virginia petroglyphs were written by Irish monks in Ogham.

Historic home of America's sweetheart sharpshooter, Annie Oakley.

This scenic Maryland park was the site of one of the worst prison camps of the Civil War.

This 1830s store is believed to be the site of Harriet Tubman's first stand.

After hundreds of years of settlement, this once-bustling fishing village sunk into the Chesapeake Bay.

A desiccated merman and a walrus penis bone are among the oddities in this eclectic collection of shipwreck treasures.

An isolated island home to one of the oldest English-speaking communities in the region and Maryland's state dessert.

Once home to seven different roller coasters, Glen Echo has undergone many transformations since its founding in 1891.

Volcanic stone sentinels stand watch at a Korean Bell Garden in Virginia.

A lost cemetery stands forgotten on a hilltop, known only to the older residents of Pomeroy.

The fine fabric handwoven at Biltmore Industries was once coveted around the world.

Over 200 people were buried here with only a small stone to mark their final resting place.

This boulder stays on its mountain thanks to a huge chain and on the map due to local legend.

This abandoned amusement park was built on a site with a dark history.

The birthplace of Appalachia's only first lady, who some have dubbed the United States' "first female president."

All that's left of the quintessential "cabin in the woods."