The former home of Lillian Evans Tibbs and her grandson, Thurlow Evans Tibbs Jr., whose prodigious contributions to music and art spanned more than 90 years.

This apartment building designed by a notable Washington D.C. architect housed the Qing Dynasty's Legation.

‘Bush the old fire dog died of poison July 5th, 1869. RIP.’

The only National Monument ever to go missing for nearly 50 years then resurface in a dump.

The most accurate timepiece in the world.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

This Parisian fountain is a little bit fantasy and a little bit nightclub.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

This Gothic church was wheeled in its entirety to a new location a half a mile away.

Though it was heavily modified, fragments of the original medieval cathedral still survive.

Some North Carolina Cherokee have been keeping their history alive for decades with a single play.

The first full-scale tunnel built in America is short but scenic.

The secret city built by the Manhattan Project.

More than five miles of underground passageways.