While most wind tunnels test scale models, the "Cave of Winds" was large enough for actual airplanes.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

The "lovely red Vega" of the legendary record-settling pilot.

A muscular Art Deco monument represents the struggle between regulators and unbridled markets.

Look closely and you’ll notice that the color changes a third of the way up the tower.

There’s a hidden military meme engraved on the World War II Memorial.

The preamble to the U.S. Constitution written entirely from vanity license plates hangs in the Smithsonian museum.

An astounding collection of medical specimens, including bits of President Lincoln.

A sharply wedged sundial marks the point at which each day in the United States begins.

The sculptor was instructed to add “stallion attributes” to the general's bronze mare.

The world’s first penitentiary, meant to be humane, drove men insane.

This elaborate towering structure was once famed for its revolutionary height.

This museum in the woods evokes the work and lives of Michigan's 19-century lumberjacks.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

This enormous fish commemorates the unplanned release of brown trout into a Michigan river.

This resort community was known as the "Black Eden of Michigan."

This lighthouse and shipwreck museum keep a torch burning for the memory of the SS Edmund Fitzgerald.

They call buildings like this "mimetic architecture," but nothing has ever mimicked the taste of Moxie.

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

This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

The highest point in the state of New Hampshire, and while unlikely "the worst weather in the world," it sure seems that way to hikers.

A maritime museum holding the remains of Blackbeard's pirate ship.

This statue inspired by Renoir's famous painting embodies the jovial spirit of Key West.

The highway's southernmost spot is a beloved local attraction.