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

A lush green oasis in the middle of Chicago.

A shining sculpture made of 3,115 lights, the number of visible stars in the Northern Hemisphere.

A monument to the art of slicing people open.

Rifle through images of skyscrapers, Worlds Fairs, and more in the largest public postcard repository in America.

More than 300 years ago, a revolt at this Hopi pueblo shaped the future of the American Southwest.

A former electrical substation is now home to an eccentric junk art masterpiece.

The upstairs reading room is packed with millions of rare books, literary manuscripts, and historical treasures.

This small stone building, the final work of a renowned artist, offers a peaceful environment with radiant, colorful glass windows .

A view-altering observatory at the University of Texas.

DIY collection of eclectic holdings.

This eclectic Austin curiosity shop is home to all things strange and unusual.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

One of the few remaining carousels built by master amusement park carver Charles I.D. Looff.

Every weekend, people gather here for a brief chance to see their loved ones on the other side of the United States–Mexico border.

Tijuana's legendary jai alai or "basque ball" palace is now a massive music venue.

This seaside production studio was built to film 'Titanic' and has been the wet set of choice for other Hollywood productions since.

This often-overlooked ocean walkway was once considered an impossible fantasy.

19th century pendulum and a clock restored by a rogue group of guerilla artists.

The great Italian Renaissance painter was laid to rest here in the Chapel of Saint-Hubert.

Miles of man-made caves and tunnels are currently used for cultivating mushrooms.