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

Nestled in the heart of San Francisco’s bustling Financial District stands a unique homage to the Mayan and Beaux Arts.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

The programmatic glory of LA's giant whiskey barrel building has become an upscale reminder of the city's kitschy roadside past.

Magical-looking cottages that inspired one of the most famous animated films ever.

Iceland's "Smoky Valley" is a beautiful river that is shrouded in a constant cover of steam clouds.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

Visible below the waves are memorials to the city's Gold Rush dead.

Furniture tries to escape an abandoned building in San Francisco.

Historic funicular railway, believed to be the shortest railroad in the world.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

Quite simply the largest tree in the world (by volume).

Tiki luxury on Nob Hill.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

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

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."

A battle between nature and architecture in the Cambodian jungle.

One of only two commuter aerial tramways in the United States.

An homage to everyone's favorite prehistoric cartoon family.

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