This memorial plaque remembers a strangely shallow maritime disaster known as "Chicago's Titanic."

Illegal drag racing two stories beneath Chicago’s streets.

A 400-foot-tall tall map of Chicago makes this once-ignored building stand out.

An enormous, inside-out glass globe built in 1935.

This bridge was the birthplace of a unit of measurement based on a fraternity joke.

One of the now-less-hidden floral gems of the "Emerald Necklace."

This stone tower in a small town's graveyard looks as though it would be more at home in a fairy tale.

Three and a half miles of cliffs, rocky beaches, Gilded Age mansions and 40 Steps to nowhere in particular.

The other side is actually green.

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.

The massive machine creates cracking displays of indoor lightning.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

Dedicated to the art and science of glass in equal measure, this space is as much laboratory as museum.

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

Why have you never heard of the second most popular tourist site in New York?

Largest tulip festival in America, includes fireworks, a parade, and a carnival.

This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

The world's largest piece of copyrighted artwork.

This impressive Boston holy house is the American mecca for Christian scientists.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

This massive tea kettle was once a promotional stunt for the Oriental Teashop.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.