One of the last few places in Manhattan that employed a pneumatic systemic keeps it on display.

The crown jewel of the Queens Museum is a nearly 10,000-square-foot architectural model of the city originally built for the 1964 World's Fair.

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

A dilapidated dock tells the story of Titanic's missed arrival.

The ancient settlement attracts tourists from all over looking to learn about the Chinese vision of the afterlife.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

A 300-ship graveyard, with a few still visible at low tide.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

Big gun installations, built over a massive cemetery, now abandoned & hidden in trees.

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

The trials and tribulations of marking Poe's grave.

A historic presidential getaway on the continental United States' southernmost island.

The museum chronicling a treasure hunter's dream, fulfilled.

The birthplace of American international flight service has been turned into a celebrity's microbrewery.

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

A museum devoted to the victims and the survivors of the most catastrophic fire in American history.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

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

New York City's smallest piece of private property.

A former seaside jewel built for the everyman is now simply a neglected art deco fortress.

The home of aviation trailblazers, in a remote corner of the big city.

The maritime museum that boasts the largest nautical library in the western hemisphere.

This seaworthy collection was sparked by one man's passion for sailing.

Board a mine car and descend the #190 slope 300 feet underground into the Clark Vein of coal.