Quite simply the largest tree in the world (by volume).

An apocalyptic seismic event creates a deadly chain reaction that ends with a 6-mile long lake developing within weeks.

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

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

This nearly 200-year-old restaurant's history includes an exiled French prince, JFK, and a very hungry Daniel Webster.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

See the computer’s history revealed over the course of 20,000 years.

One of the first intercontinental ballistic missile sites in the United States.

This is one really big nut.

One of the last socialist halls still standing in the United States.

A smoke stack so large, the Washington Monument could fit inside!

The old fire tower is one of the last of its kind in the United States.

One home in the historic strip hides secret compartments and the ghostly songs of long-gone canaries.

Modeled after a famous church in Vienna, Austria—but in Helena, Montana.

The overgrown remains of one of the premier auto-racing speedways in the Midwest—and also one of the most deadly.

This shallow pit was once used to send over 20,000 buffalo plummeting to their death.

An antique Beechcraft airplane serves as a giant windsock for people driving through the blustery open country of eastern Wyoming.

South Dakota's oldest operating brewery is housed inside a historic firehouse.

One of America’s oldest and spookiest hotels, thanks to the residency of ghosts, dead presidents, and Alfred Hitchcock.

Thanks to a loophole in property ownership, this alleyway has become a cacophonous street gallery.

Every president in history is immortalized in bronze in downtown Rapid City.

A monument to the forgotten French explorers and their landmark expedition.

Just a man taking his prehistoric pet for a stroll.

Dedicated to the history of the 1,000 nuclear missiles that once covered the Great Plains.