A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

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

Order scoops of pandan, lychee, and black sesame at this family-run institution.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

Every equinox this Maya pyramid puts on a spooky ancient light show.

The Magical World of George Phar Legler.

The largest stone moai on Rapa Nui.

Hundreds of trees made from glass bottles make up this forest on Route 66.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

A reproduction of earth's many biomes.

The atmospheric road was never meant to be so creepy.

A museum dedicated to the alleged Roswell Incident.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

The magic's in the hole!

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

A giant Troll lurks under one of Seattle's oldest bridges.

Famously misunderstood wonder of the ancient world

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

Try not to get slimed in Tribeca.

The only theatre in the world constructed specifically for sound movement.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

Northern Ireland's Brobdingnagian stepping stones.