The 320-year-old tree that greeted General Lafayette and rerouted an interstate highway.

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

Once America's tallest structure, now a Baltimore landmark.

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

A faded sign from the 1920s remembers Baltimore's resistance toward banning alcohol.

A hidden alley in urban Baltimore is a haven for graffiti artists.

Ship skeletons haunt Baltimore's waterways.

The design of this historic domed church was influenced by Thomas Jefferson and intended as a statement of religious freedom.

Crammed into a Baltimore row house is an oddities shop that sells everything from skulls to dead insects.

Small teepee-like houses built for TB patients have become sheds, studios, and bus stops around Colorado Springs.

The moving metal works of one troubled artist can still be viewed on his front lawn... for now.

The haunted reputation of these abandoned Colorado train tunnels is probably not helped by the terrifying spiked fence.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

The world's largest collection of the world's largest objects is in one small Illinois town.

A sobering account of the vibrant multicultural neighborhood that was destroyed under apartheid.

This road winds through the steep coastal cliffside offering spectacular views for those who brave the drive.

Formerly known as the Malay Quarter, Bo Kaap is a colorfully-painted suburb located in the “Mother City” of South Africa.

A river runs through this remote valley in a very unexpected way.

A house carved into a rock in the 1940s.

This Nazi-built amphitheater was constructed on a sacred mountain site used by various German cults.

There has been an astronomical clock on this spot since the 14th century.

Rediscovered after a century, the father of the American Navy was reinterred in something dredged up from Davy Jones' Locker.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

A layered tribute to the work of mosaicist Isaiah Zagar.