Where manatees are the snowbird vacationers in these balmy Florida springs.

Meet manatees face-to-face at this zoo for native species.

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

This bug-eyed water wheel uses the power of the Sun to clean up Baltimore Harbor.

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

The trials and tribulations of marking Poe's grave.

The United States' oldest Episcopal church still in active use.

In 1787, a group of delegates met at this very spot to drink, be merry, and ratify the Constitution of the United States.

The massive machine creates cracking displays of indoor lightning.

Centuries-old hoofprints and wagon tracks reveal themselves after a good winter storm.

A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

This elaborate towering structure was once famed for its revolutionary height.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

A layered tribute to the work of mosaicist Isaiah Zagar.

An unusual, super-sized grocery adventure awaits in an Ohio suburb.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

The house that Frank Lloyd Wright "(shook) out of his sleeve at will" at the age of 86.

The god of wine stares out at passersby on this busy Pittsburgh thoroughfare.

A take-out restaurant that only serves cuisine from countries with which the United States is in conflict.

The souvenir got the company’s founder out of a pretty pickle at the World’s Fair.

Color-coded signs direct drivers on a network of routes designed to avoid Pittsburgh traffic.

This spot memorializes one of the greatest plays in NFL history, unless you happen to be a Raiders fan.

The largest clock face in the United States is twice the size of Big Ben and infinitely more ad-sponsored.