This lush 12-acre site was once named the finest Japanese garden in North America.

The last masonry skyscraper ever built reveals a transitional moment in architectural history.

A historic and oft-filmed prison stands in a Chicago suburb.

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

A piece of the iconic wall found an unlikely new home in a Vegas bathroom.

These banned cigarette vending machines now sell little pieces of pocket-sized art.

What may be America's largest classic video game arcade lurks inconspicuously in a Chicago suburb.

What was once the second largest steel mill in the US is now a sprawling complex of modern ruins.

Despite its name, this fast food museum is actually a replica of the ninth McDonald's store.

A towering Art Deco movie palace made to look like a Mayan temple.

From banquet hall to Masonic Lodge and now concert venue, Ganz Hall is a breathtaking glimpse of into the golden age of American architecture.

A former atom smasher turned into an art gallery.

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

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

This striking art museum holds an amazing series of curiosity cabinets.

An exotic wildlife habitat right off The Strip.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

Flashy signs from Las Vegas’s past find their final resting place at this unusual graveyard.

This historic Illinois "Muffler Man" has been converted from axe-touting lumberjack to rocket-wielding space ace.

The 606 is a decade in the making.

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

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

The only Bahá'í house of worship in North America and one of only a handful worldwide.

Half-sized replica of the Leaning Tower of Pisa built to honor Galileo.