Before becoming a public park, this spot was a shell midden, a fort, and an amusement park.

The first plantation museum in the United States to focus on the lives of enslaved people.

This unique shop is full of memento mori art, antique medical equipment, secret society paraphernalia, and historical relics.

Come for the 14-foot-long taxidermy alligator. Stay for the mini costumed gators shooting pool.

A pink cottage covered in hearts served as a haven and a resting place for LGBTQ activists.

Once the site of a Native American harvest festival, this humble clearing later played an invaluable role in the birth of jazz.

The only home of the famous French impressionist painter open to the public is now a museum and bed and breakfast.

This New Orleans tree is filled with hidden chimes that produce a carefully tuned melody.

Shop for books in the New Orleans house where William Faulkner once lived.

This cathedral dedicated to Louis IX, sainted King of France, holds many secrets.

The oldest operational cathedral in the U.S. has one shell of a way of projecting speakers' voices.

The second oldest continuously operating bar in Louisiana.

A house of courtship where the Jazz Age's most storied lovers got their start.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

First Joe Pagac sculpture; sculpture reflects native Tucson wildlife in an urban setting.

In this small Phoenix taxidermy emporium, you can find everything from a squid in a jar to a freeze-dried toad.

The massive, incredibly rare instrument is over 11 feet tall with a range so deep it goes lower than humans can hear.

A 1930’s courtroom where John Dillinger and his gang went before a judge.

A reproduction of earth's many biomes.

Orthodox church partially financed by Tsar Nicolas II.

No one knows how many bodies are in this vault in a Chicago public park.

Huge abstract sculptures of the Puerto Rican Flag.

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

To find the "unicorns of the deep" you've got to go downstairs.