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

This historic hotel invented the chocolate brownie.

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

Chicago's largest cemetery is full of beautiful Victorian monuments and more than a few ghost stories.

A science teacher's dream.

A hollow cement depiction of time's inexorable effect on the human body.

A haunting statue called "Eternal Silence" has quite the reputation among visitors with active imaginations.

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

An enormous park-like oasis, full of famous Chicagoans' graves.

A monument to the art of slicing people open.

A lush green oasis in the middle of Chicago.

A speakeasy takes on Chicago's drinking culture.

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

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 midcentury chapel is a bold architectural statement and a symbol of Indiana's Lutheran heritage.

This old steel industry company town has a tradition of parking cars on the sidewalk so people can walk in the narrow streets.

Historians and hobbyists head to this former French outpost for the annual Feast of the Hunters' Moon.

The large rock formation where the Shawnee prophet Tenskwatawa stood and encouraged his warriors during the Battle of Tippecanoe.

The farm where one of America's greatest leaders was raised is now a well-appointed landmark.

This unassuming home was once “grand central station” for the Underground Railroad.

This elaborate estate contains a stunning marble aviary, a sunken conservatory, and a magnificent music room with a two-story pipe organ.

The body of one of the world's most famous outlaws is covered in cement and iron to prevent it from being stolen.

The site of a 19th century "dream city" that almost rivaled Chicago before being swallowed by the Indiana sand dunes.