Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

Unique tower has outlasted a takeover of the company.

One of the best places to see feral Colonial Spanish Mustangs in the United States.

Heron, whitewater rapids, and urban industrialism all add to the beauty of this concrete nature walk.

The most accurate timepiece in the world.

The span is crooked and made from two older recycled bridges.

The semi-reclaimed ruins of this canal were once part of an ambitious plan to reroute the mighty potomac.

The ruins of this long-abandoned unsuccessful gold mine can still be found.

An out-of-place Air Force radar dome is all that denotes this park as a former missile launch site.

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

A stone arch leads to a cavernous 1930s spring house tucked away in the Pennsylvania woods.

First a root beer ad, then a golf course clubhouse, and finally a massive teapot.

A grandiose title could not save this mercantile community from obscurity.

The site of Neil Armstrong's first flight is marked by a full on replica of the moon landers.

A monumental statue of RCA's mascot now sits atop a historical society roof after a life of moving around.

An eerie, abandoned military base engulfed by nature and graffiti is now home to a local park.

The trials and tribulations of marking Poe's grave.

A private residence adorned with a gorgeous mural dedicated to the buzzing insect.

This Old Testament garden features 100 plants from biblical times.

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

Cleveland's giant "free" stamp is a nod to the Civil War, but was misinterpreted for years.

Abandoned since the 1950s, the streetcar lane beneath the heavily trafficked bridge lays empty and unused.

The beloved dining spot stands at the cross-section of Hollywood and the Old West.

The historic bar where local ship captains, traders, and gold miners would come together to do business a century ago.