This monument owes its name to a quote by the famous civil rights activist and journalist.

A small Chicago museum filled with thousands of preserved butterflies, beetles, and more.

A lush green oasis in the middle of Chicago.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

This morbid, delightful curiosity shop offers everything from animal bones to human teeth.

This giant tower beacon was a key navigation tool for pilots delivering mail amid the night skies.

This work of art by Matthew Mazzotta resides in this park dedicated to the first black legislator in Idaho.

Home to the deepest rift anywhere on Earth.

A 1940's shrine dedicated to drowned fishermen on the outskirts of Honolulu.

This black shoreline is made up of exploded lava particles.

The world's first time capsule lies behind a welded steel door in Atlanta.

Suspended above the ground in a thicket of towering Georgia trees is a modern architectural wonder.

The perfectly named cave drop is the deepest in the continental United States, almost matching the height of Seattle’s Space Needle.

Tour the sci-fi-esque reality of governmental disease management.

A luxuriant botanical garden below sea level.

Arrr! The most authentic collection of pirate artifacts in the world... matey.

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

Florida might be at its most surreal in this museum devoted to the famed Spanish artist.

Where manatees are the snowbird vacationers in these balmy Florida springs.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

A grotesque Fiji merman dwells within this traditional Dutch-style building.

This collection of odd proofs of concept is like taking a walk through the imagination of a Victorian engineer.

A desiccated merman and a walrus penis bone are among the oddities in this eclectic collection of shipwreck treasures.