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.

Also known as the Osaka Garden, this garden was originally built in 1893 as part of the World's Columbian Exposition.

What's left of the ruins of the 1893 Columbian Exhibition, or World's Fair, also known as the White City.

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

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

A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

These five houses were built for the 1933 Chicago World’s Fair.

This local gem houses the largest collection of pre-Raphaelite paintings outside of the U.K.

A bit of retro transportation flair preserved in the world's largest department store.

There are owls with glowing eyes in Herald Square.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.

The fanciest public restroom in New York City boasts fresh flowers, art, and a classical music soundtrack.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

Outstanding taxidermy dioramas showcase the grandeur of the continent's wildlife with spooky realism.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Hidden in Central Park's Ramble is a troublesome cave buried just beneath the surface.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

This monument is dedicated to Balto, the heroic Alaskan sled dog.

Long the exclusive domain of birds and vagabonds, this little-known Central Park peninsula is open to the public once more.

100 massive sculptures in the Hudson River Valley.

"A hideous albatross in the Hudson River Valley."