This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

The souvenir got the company’s founder out of a pretty pickle at the World’s Fair.

It's big, it's a ball, and it's made of twine—the world's largest of its kind.

A tradition unlike any other, this marks the site of the annual Groundhog's Day tradition.

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

Architecture lovers won’t stop touching the National Gallery's 19.5 degree marble prow.

A museum cafe showcases Native American dishes and indigenous ingredients from across the Western Hemisphere.

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

Home to items never before seen by the public.

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

A fitting attraction for the corn capital of the world.

Once thought to be the fabled Holy Grail, it is now known to be an oil lamp.

Even for Egyptian royalty, the afterlife was bring-your-own-beef.

An unusual, super-sized grocery adventure awaits in an Ohio suburb.

This bright yellow building is packed with sweet treats from all around the world, from chocolate-covered crickets to whoopie pies.

The mounds at this site were reconstructed with the help of archaeologists and historians.

The world's tallest doric column is this Ohio monument to a naval victory in the War of 1812.

Take a drunken tour inside the world's largest known geode.

Deep scars on the earth left by the Ice Age.

Learn about the history and craftsmanship of carousels inside this museum located in a former post office.

An American flag was erected for every day that passed during the Iranian Hostage Crisis.

A real flying saucer, contracted by the U.S. Air Force.

You can walk through the first Boeing Air Force One, which famously carried JFK's casket from Dallas back to D.C.

Inside houses a vast collection of military aircraft and missiles spanning the ages.