A unique botanical garden housed in three giant geodesic domes.

This abstract sculpture is rumored to cast a hammer-and-sickle shadow once a year.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

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

This awkward aquarium sculpture is one of the strangest statues in Chicago.

These pretty kitties killed and ate as many as 135 railway workers.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

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

Illegal drag racing two stories beneath Chicago’s streets.

The iconic Chicago sculpture hides a beautiful and easily overlooked plaque on the backside.

Chicago's Navy Pier on Lake Michigan was a training hub for aircraft carrier pilots during WWII.

A display of magnificent stained glass windows is the first exhibit of its kind.

A hot dog stand where the heads are just as hot as the dogs.

The remains of what was once the world's steepest passenger funicular.

A daybeacon pyramid is about all that's left of this island that is said to have sunk due to a pirate's curse.

Historic Hull Street was actually the first street with a proper name in the Boston area.

The tomb of Increase Mather and his son Cotton, influential colonial ministers obsessed with the occult.

Tragedy on Little Brewster Island memorialized.

This landmark cemetery in Boston was created more than 300 years ago.

Narrowest house in Boston.

The site of Paul Revere's historic two lantern warning.

This area was once known for being a lawless haven for rough-and-tumble sailors, earning the maritime-themed nickname "the black sea."

The site where Charles Dickens gave his first public reading of "A Christmas Carol" in the US.