A spiritual vortex among the red rocks in Sedona.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

A cave's rare beauty held a cavernous secret hidden underground.

The secret city built by the Manhattan Project.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

The Boston square dedicated to the dark poet who was born nearby.

A popular European tradition makes its way to the states on one of America's most famous bridges.

A bizarre roadside attraction and the first instance of miniature golf in the world.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

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

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

One-time winter retreats of prolific inventor Thomas Edison and his friend Henry Ford.

This small museum gives visitors a chance to soak up the history of the "sponge capital of the world."

This abandoned NASA launch site is now a memorial to a trio of astronauts who were killed there.

A building so large that it has its own weather.

Meet manatees face-to-face at this zoo for native species.

The record holder for the world’s largest peach.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.

All you ever needed or wanted to know about America's favorite whiskey, but not a drop to drink.

Enormous lake at the bottom of a unique cave system.

Bad farming practices caused this unnatural natural wonder.

Live long and prosper in Tennessee.