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

Considered by many to be one of the most dangerous highways in Alaska.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

This enormous "cloth of the conquest" depicts the Norman invasion of England in mind-blowing detail.

Famous for its bio-luminescent inhabitants, known as "dismalites."

You'll need cowboy boots to trek to this old-fashioned saloon nestled in a giant natural cave.

Underneath this water pump, Annie Sullivan helped Keller speak her first words.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

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

Tiki luxury on Nob Hill.

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

This shop and studio is dedicated to the art of the book, from letterpress to bookbinding.

A collection of memorabilia from the Beat era in the back of a San Francisco bookstore.

Poland's oldest surviving university building holds a wealth of historic science instruments including some used by Copernicus.

“Live hard, ride fast, eat pizza” at this joint filled with Evel Knievel memorabilia.

The second-largest gold nugget in existence, displayed in a Las Vegas casino conveniently named the Golden Nugget.

This colossal ancient sculpture of the monstrous Aztec rain god has a literally stormy history.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

Flashy signs from Las Vegas’s past find their final resting place at this unusual graveyard.

Fans of vintage Vegas, kitsch, and toy pony-based gambling now flock to a casino called The D.

A memorial dedicated to victims of the Irish Potato Famine who perished while quarantined on this island.

The last remaining 19th-century tenement from Boston's old West End neighborhood.

Millions of numbers carved in glass represent the tattoos forced upon victims.