San Francisco Bay's ghost town.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

A hotel and restaurant serving as the mecca of kitsch.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

Formerly known as National D-Day Museum, this collection commemorates the battles of Normandy and WWII.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

A monument celebrating the idea of reaching inaccessible places.

Once the most flame resistant building in the country, the South Carolina Historical Society building was almost burnt down in a fire.

This abandoned coliseum was intended to be a grand Nazi rallying ground before it was halted at the end of the war.

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

Four, 18-foot-tall badminton shuttlecocks lie scattered about the lawn of a Kansas City museum.

Two hundred tons of pioneer artifacts were painstakingly recovered from a shipwreck at the bottom of the Missouri River.

A shape-shifting buy-sell-trade bookstore, born to Beatnik Era spirit.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

This memorial plaque remembers a strangely shallow maritime disaster known as "Chicago's Titanic."

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

A still functioning vaudeville carousel that has operated for over a century boasts a colorful menagerie and past.

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

San Francisco's newly reopened hands-on science museum.

This long, dark tunnel is open to hikers, but those without lights are known to get confused even on the straight path.

The haunting ruins of Jack London's dream house.