The original Uncle Sam was actually a New York meatpacker who is buried under this historic grave.

Resonating tubes make music from highway overpass.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

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

This historic-shipwreck-cum-diving-spot can still be seen poking its boiler out of the Lake Michigan waters that claimed it.

World's second largest particle accelerator, where nature reveals its secrets.

A replica viking ship from the Chicago World's Fair is still in dry dock in an Illinois park.

A onetime gangsters' hideaway where you can dine on steaks, fine wines, and cigars just like they once did.

This small city where almost everyone lives in the same building can only be reached via North America's longest tunnel.

An Alaska livestock farm devotes itself to harvesting wool from creatures that once ran with mammoths and sabertooth tigers.

This whimsical stacked cabin looks like something out of a children's book.

Siberian husky that delivered a life-saving antitoxin.

Colorful boxes placed over the dead are left to rot and crumble.