A 400-foot-tall tall map of Chicago makes this once-ignored building stand out.

Not to be confused with the iconic New York City skyscraper, this Chicago building is a vibrant hub for artists.

This memorial plaque remembers a strangely shallow maritime disaster known as "Chicago's Titanic."

A journey begins with a single step, and for many, the road-trip of a lifetime started at this Chicago intersection.

Illegal drag racing two stories beneath Chicago’s streets.

This alley in downtown Chicago held the bodies of over 600 people after the fateful Iroquois Theatre fire.

This historic hotel invented the chocolate brownie.

This coastal port saw one of the most significant battles of the Civil War.

This botanical garden has been nicknamed "Alabama's Little Corner of Greece."

One of almost 200 confirmed impact craters in the entire world, untouched for tens of millions of years.

Since it formed millions of years ago, this cave system has been a sacred burial ground, a Prohibition-era speakeasy, and the center of an amusement park.

The whimsical construction on the roof has given rise to many a Montgomery myth about its contents.

Designed by Maya Lin, the memorial honors 41 individuals who died fighting for equal rights between 1954 and 1968.

Over a dozen Native American earth mounds dating back over 2,000 years dot this Tennessee archaeological park.

The world-record holder for the longest bridge stretching continuously over water.

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.

Colloquially known as "the lynching memorial," this is the United States' first memorial to the victims of racial terror at home.

The country music legend's grave is surrounded by Astroturf because fans kept plucking out the grass.

A cemetery for only coon hounds in northwest Alabama.

This two-room shotgun shack in Tupelo is the birthplace of a King.

Instead of becoming a power plant, this abandoned complex became a massive letdown.

The highest point in Mississippi is a hilltop that was once used to bombard a nearby town with artillery.