The trials and tribulations of marking Poe's grave.

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

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

A scenic fort on the harbor protected Philadelphia from an attack that never came.

A French chateau, failed utopian community, odd museum, and Stonehenge replica in rural Washington State.

More than five miles of underground passageways.

A bizarre roadside attraction and the first instance of miniature golf in the world.

Live long and prosper in Tennessee.

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.

Once decrepit and slated for demolition, now one of the longest pedestrian bridges in the world.

This historic train station has been converted to a locomotive themed hotel.