Two small markers remember the Alamo's feline protectors.

Pay a visit to America's oldest yarn shop.

Decades' worth of lost and forgotten objects make up the collection of this tantalizingly odd little museum.

A walk through the historic city center, under the streets of Seattle.

Post office plaque commemorates local resistance to a cult invasion.

The seamy, underground secrets of Portland's criminal past.

This original Mason-Dixon line cairn placed in the 1760s was put in the wrong location because of the gravitational pull of the Allegheny Mountains.

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

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

One of the few surviving examples of the first lock and dam system built on the Ohio River.

This tiny man looms large over downtown Charleston.

Mysterious ancient boulder carved with petroglyphs in the mountains of Western North Carolina.