A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

The story behind this beloved toy—named for Theodore Roosevelt and owned by his grandson—is more complicated than you might guess.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

Perhaps the most scandalous statue of America's first president.

Home of the only civilian casualty at the Battle of Gettysburg.

This large garden vase urn has nothing to do with the seventh U.S. President—it was designed by one landscape designer to honor another landscape designer's contributions to the National Mall.

A traveling postal dog covered 48 states and more than 140,000 miles, and he lives on as taxidermy, patched up with a rabbit's foot and a pig's ear.

The walls of the iconic dome are hollow and have a secret stairway.

Home to items never before seen by the public.

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

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

The early 20th-century home features cutting-edge technology of the day, such as ammonia refrigeration and needle showers.

Near the summit of Mount Washington, a stone monument remembers a life lost to one of the mountain's infamous storms.

A mere dot on the map in the great north woods is the first place in America to vote in Presidential elections.

A serene plaza that commemorates one of the Granite State's most iconic figures.

This smiling statue memorializes local cartoonist Bob Montana and his legendary creation.

This location of a Mexican chain restaurant has a unique location: an old jail.

The summer home and later final residence of acclaimed American sculptor Augustus Saint-Gaudens.

Maybe the only missile installed in a public park, this Cold War leftover was one of the first to carry a nuclear warhead.

Come for the gun-toting hillbilly madman, stay for the ice-cream loving basketball bears.

America's oldest archaeological site or a muddled case of wishful thinking.

These towering spires and glowing walls are carefully crafted from hundreds of thousands of icicles.

Even Henry David Thoreau found this glacial pothole irresistible.

This narrow canyon has been carved by the river over thousands of years into spectacular and curious forms.