"There's nothing there," and other lies the KGB told us.

This former hub for crafty philosophers was founded by a writer who died aboard the infamous RMS Lusitania.

An echo chamber with a waterfall wrapped around its base at the Embassy of Canada in Washington, D.C.

Once a sewer culvert, this road tunnel now offers cyclists and pedestrians a subterranean stroll under the C&O Canal.

A striking memorial to the 21 lives lost in an explosion at the Washington Arsenal

A spectacular tribute to statesman and philanthropist Andrew Mellon.

A total of 14 men held the title of "president" before George Washington—their historical legacies are enshrined in the lobby of a hotel.

The strange and snarky traditions of the lumber industry's fraternal order began with five men waiting for a train here in Arkansas.

Everything in this miniature world was handmade from matches, paperclips, wires, tin cans, and other everyday objects.

This restaurant proudly displays bread signed by the 39th president.

Franciscan monks created a facsimile of the Holy Land for North Americans who couldn’t afford the trip overseas.

The school tested mustard gas for the U.S. Army during World War I.

Dogs, cats, horses, monkeys, frogs, and fish are laid to rest at the second-oldest pet cemetery in the U.S.

The rooster who crossed the road lives on forever in Takoma Park, Maryland.

A diminutive plaque recalls the treetop sniper who almost killed Abe Lincoln.

Brain collection and database that narrows the gap between man and animal.

These ruins are all that's left of the former Alabama State Capitol.

A Muppet museum in small-town Mississippi honors the roots of Jim Henson's most beloved creation.

This historic general store still operates much as it did in the late 1800s.

One person's lost luggage is another person's treasure.

The famous greeting card maker owns a collection of paintings by the famed surrealist.

The first car-centric shopping plaza in the U.S. brought a little bit of Spain to downtown Kansas City.

Four, 18-foot-tall badminton shuttlecocks lie scattered about the lawn of a Kansas City museum.

Two hundred tons of pioneer artifacts were painstakingly recovered from a shipwreck at the bottom of the Missouri River.