The summer home of the largest colony of bats in the world.

A classic carnival ride that was carved to be untouchable.

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

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

This record-setting hydraulic dam in the Montana badlands was one of FDR's most ambitious public works.

A little-visited ghost town state park offers a glimpse into Montana’s "Silver Queen."

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

For thousands of years, Native American hunters drove buffalo straight off this cliff in Montana's Yellowstone Country.

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

High in the Rockies the third largest statue in the U.S. opens her welcoming arms, and lights up the night sky.

The residents at this Yellowstone wildlife park will certify your cooler as "bear-proof."

The highest point in Montana is as rugged and singular as the state itself.

This off-the-beaten-path abandoned town is a relic of Montana's silver mining boom.

An entire town preserved as a historic landmark.

The only road through the heart of Glacier National Park.

This amazingly preserved Gold Rush town is a historian's dream.

New fungal and bacterial species call this deadly lake home.

135 bronze medallions mark a French meridian line which once rivaled the hotshot Greenwich timeline.

Exquisite wall sculptures carved in secret by an early quarryman in an obscure corner of the Paris Catacombs.

The Sun King's military models, saved from the Louvre.

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

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

The oldest working bell set in North America, the bells at Old North Church sat silent for their first four years in Massachusetts.

Historic Hull Street was actually the first street with a proper name in the Boston area.