A geological mystery on Camelback Mountain.

This abandoned seaside fortress is now simply an imposing ruin being taken back by nature.

One of the most enjoyable bits of history at Coney Island and “the most romantic ride in the world.”

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

A bit of retro transportation flair preserved in the world's largest department store.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

The "Seinfeld" diner.

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

The 92-foot-tall structure is based on the aircraft that carried the first Americans into space.

The only one of New Hampshire's original 14 World War II watchtowers to survive in near-original condition.

Come for the gun-toting hillbilly madman, stay for the ice-cream loving basketball bears.

Maybe the only missile installed in a public park, this Cold War leftover was one of the first to carry a nuclear warhead.

Stumps of an Ice Age forest, visible only at low tide.

The largest arcade museum in the world chronicles the golden age of video games which ended promptly in 1987.

The handsome statue is a tribute to the post riders who traversed 52 miles of tough Arizona terrain.

Inside this store, a mysterious statue draws visitors from the world over.

An amazing collection of model trains, collectibles, and artifacts that span the last 100 years.

An important piece of history from mankind's journey to the moon sits in the lobby of a government science lab.

Come for the pizza, stay for a performance on the world's largest theater pipe organ.

Bootleggers ran booze beneath this building before (and after) Route 66 appeared beside it.

The state's only comprehensive museum dedicated to the mineral that defined its history and economy.

Legend says train robbers stashed their gold within the depths of this unusual cave.