The childhood home of the Sultan of Swat is just a line drive away from Oriole Park at Camden Yards.

Ship skeletons haunt Baltimore's waterways.

The site where Poe "in great distress, and ... in need of immediate assistance" likely died.

Three hundred years of preserved Spanish colonial history in San Antonio.

Ruins of a once-opulent grand Victorian resort.

This mountain tram provides stunning views while hanging from a single, steel thread.

A prison-like structure guards the remains of a notorious Old West outlaw.

Natural catch-basin rocks covered in thousands of drawings spanning many millennia.

A cave's rare beauty held a cavernous secret hidden underground.

Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

A preserve with 75,000 ancient drawings remains the realm of public – not just scientific – exploration.

The symbol was surreptitiously built into the river bank by German prisoners of war.

One of the American Southwest's most extensive collections of Navajo rock art.

More than 21,000 images fill this overlooked gem of a prehistoric site.

Wee (and not so wee) footprints that insects and reptiles of the Paleozoic Era left behind.

Easter in Westminster may be the only time and place to behold Edgar Allen Poe made entirely of Marshmallow Peeps.

Underground vaults of a former brewery beneath Brooklyn's Crown Heights are now used to ripen cheese.

The oldest continuously operating fish market in the United States.