In Rome’s Jewish ghetto, a 200-year-old bakery still makes the neighborhood’s historic sweets.

A giant, Gilded Age mansion that once belonged to the beer baron of Milwaukee.

The site of an ancient Mississippian settlement that appears to have flourished during the 10th to 13th centuries.

At the largest railway museum in the United States, you can see everything from an early steam engine to a functioning Thomas the Tank Engine.

Cryptid lake monster honored with its own monument.

All that's left of the quintessential "cabin in the woods."

This shop for all your super spy needs hides an educational secret.

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

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

This lighthouse and shipwreck museum keep a torch burning for the memory of the SS Edmund Fitzgerald.

A subterranean world of tunnels links several buildings of this rare 19th-century asylum.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

Hell on Earth is actually a small town in Michigan where anyone can be mayor for a day.

This freshwater spring fills with 10,000 gallons of water per minute.

Over thousands of years, this slot canyon was carved out of the bed of an ancient lake.

Legend says Dungeons and Dragons players can get their dice blessed at the creator of the game's memorial.

Home to the world's largest refracting telescope and the birthplace of modern astrophysics.

A circus of light and sound forms a sensory ode to an iconic train that will never pass through town again.

A metal ring in the middle of the road marks the exact spot where the Soviet satellite crash-landed in 1962.

These Great Lakes sea caves accessible by boat in the summer turn into temples of ice reachable by foot in the winter.

The Kalamazoo factory has 100 years of instrument-making, and one big wartime secret.

A spooky defunct railroad tunnel now part of a sprawling trail.

This rare vessel mixed luxury with labor before being converted to a museum and sometimes haunted maze.

A place to eat for on-the-run agents and espionage enthusiasts.