This 12-foot-tall T-rex is the largest K’Nex skeleton sculpture in the world.

A propulsion engine testbed that paved the way for the Space Shuttle launch sits without recognition at this rocket center.

It may look like no more than a full-scale model, but every part of this full Space Shuttle stack had a working role in aviation history.

A curious collection of miniatures in a quiet corner of the Chicago Children's Museum.

An actual 1957 Cadillac De Ville, encased in 15 cubic yards of concrete.

A hot dog stand where the heads are just as hot as the dogs.

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

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

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

This small, but long-running hobby club has built one of the largest model rail lines in the US.

A rural hall of justice holds the world's only comic book and superhero museum.

This museum collects over a century of automobile history including the iconic car from The Muppet Movie.

One of the largest pieces of scientific equipment ever carried on a NASA space shuttle sits in a Chicago alley.

The subtle science of a master molecular gastronomist.

A lush green oasis in the middle of Chicago.

In this subterranean brick arcade, a small shop continues the ancient practice of bookbinding.

The angel of death appears to weep black tears at this grave marker.

On a wall in Cleveland, Ohio find the story of a highly connected fictional community of organisms that created remarkable, lasting structures.

Home of Philip Johnson, one of the 20th century's most influential architects.

A famed data visualizer's personal sculpture garden is a landscape of modern and megalithic wonders.

Marvel at this turn-of-the-century masterpiece that has been turned into a rather stately supermarket.

The ruins of the suspension bridge hang over Kingsbury Run as a ghost of racial prejudice.

This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.

Funded by John D. Rockefeller, this is one of the earliest, and most beautiful, shopping arcades in America.