This little-known collection holds everything from "Dracula" notes, to the manuscript of "Ulysses," to the forged works of Shakespeare.

World's first "penitentiary," meant to be humane, drove men insane.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

At Chicago's revered Field Museum, visitors are invited to learn about and literally explore DNA.

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

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

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

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

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

The last remnants of Fort Pitt also hold the distinction of being the oldest structure west of the Allegheny Mountains.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

Funded by John D. Rockefeller, this is one of the earliest, and most beautiful, shopping arcades in America.

The only depiction of Abraham Lincoln holding a weapon, and the names of all 9,000 Cuyahoga veterans of the Civil War.

Meet your friends, marry your true love, or tell your enemies to kiss your butt under this historic Pittsburgh timepiece.

This massive airship factory is so large that it has its own indoor weather.

The site of Neil Armstrong's first flight is marked by a full on replica of the moon landers.

A model of a dinosaur that was named for Andrew Carnegie stands outside the museum that also bears his name.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

These stark white cliffs were spat up by the sea and are slowly being retaken by it.

Fighting the British and making game shows for over 150 years.

An elaborate gift from Claus Spreckels is now a piece of San Francisco history.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

The oldest farmer's market in America is so ancient it was approved by the King of England.

This series of underground chambers contains Europe's largest subterranean lake that is slowly drained each day.