America's silhouette includes 100 square miles of wilderness jutting into Canada thanks to an old mapmaking error.

Kentucky's anomalous peninsula projecting into the Mississippi River, site of legendary earthquakes and local feuds.

A collection of huge Pre-Colombian structures in Alabama.

Handsomely crafted representations of our round planet.

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

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

Scale replica of China's ancient terracotta tomb warriors and Forbidden City are the side project of an eccentric millionaire.

An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.

This historic Illinois "Muffler Man" has been converted from axe-touting lumberjack to rocket-wielding space ace.

Less a museum than a bizarre fantasy world created by artists and engineers.