Less a museum than a bizarre fantasy world created by artists and engineers.

An artsy hidden staircase leads to breathtaking views of San Francisco.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

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

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

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

A huge musical instrument played by the ocean.

Hidden in Central Park's Ramble is a troublesome cave buried just beneath the surface.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

America's post-nuclear-attack chambers of Congress.

A pair of black granite tails dive into a sea of grass in landlocked Vermont.

A massive sustainable farm designed by the mastermind behind Central Park.

An old abandoned mining town in The Adirondacks where Theodore Roosevelt first learned of the shooting of President William McKinley.

One car at a time please.

Lake Champlain Bridge, the recently demolished and rebuilt bridge where they filmed "What Lies Beneath".

A tomb with a window to ensure the interred wasn't buried alive.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

The highest peak in the state of Vermont has some interesting features.

This sandstone gorge in New York State's Adirondack Mountains is home to waterfalls, flumes, and more.

Dispersed across 45-acres, 39 structures house a massive collection celebrating American Folk Art.

This 38-drawer structure claims the superlative title, but it isn't the world's only giant filing cabinet.

Scary metal statues adorn some of the signature buildings of Burlington, VT.

Elevated freight railway turned wildly successful urban park.