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

The final resting place of soldiers' loyal canine companions.

A minotaur, a labyrinth, and a dubious restoration pull in visitors from around the world.

Largest Roman Catholic church in North America.

These stark white cliffs were spat up by the sea and are slowly being retaken by it.

A former major munitions plant that has been converted into a sprawling art space.

A community of artists and entrepreneurs seeks a simpler life on London's waterways.

The oldest continuously operating fish market in the United States.

Once home to seven different roller coasters, Glen Echo has undergone many transformations since its founding in 1891.

This luxury shopping lane has been protected by its own tiny police force for over a century.

Government testing at the asylum briefly explored using marijuana as a "truth serum" on Nazi prisoners of war.

Few other hotels can rival the grandeur of the Castle in the Rockies.

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

Portlandia is the second-largest copper repoussé statue in the United States.

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

Public access to clean drinking water was an instant hit among the masses.

The most decorated dog of World War I is preserved in the Smithsonian.

J.R.R Tolkien, C.S. Lewis, and other "Inklings" met at the Oxford pub to discuss the now legendary fantasy stories they were writing.

A remarkably well preserved tower dating all the way back to the Iron Age.

This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

3/4-scale model of the White House in Atlanta, Georgia.

The history of the tea trade is told in bas-relief on this historic pair of Boston doors.

A toweringly silly piece of modern art has been delighting locals since the 1980s.

England's most notorious suicide spot.