Museum celebrating the history of computers, especially their role in codebreaking.

Since 1874, this macabre collection has developed into a museum devoted to Scotland Yard's mementos of dastardly deeds.

This museum celebrating the almighty dollar lets visitors literally stand in the shadow of a million bucks.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

This insurance company building reminds customers that witches, bears, and gnomes are out there, best be insured.

The history of radiation is on safe display at the foot of a radiation science laboratory.

When this test site was abandoned, they didn't even bother to take the rocket with them.

This picturesque mansion has gone from opulent ruin to nature museum.

A small museum filled with over 1,000 clocks, and one particular clock calibrated to run until the year 9999.

The vast chamber inside this abandoned cooling tower looks like something out of a sci-fi dystopia.

A dormant lightning machine equal to all the power in Russia.

This large collection of tiny things revels in the art of fine machinery well made.

This museum started as a collection of Manhattan Projects and continues to add exhibits as they are declassified.

A former electrical substation is now home to an eccentric junk art masterpiece.

The superstar of Cold War nuclear bunkers has been featured in countless films but is now barely operational.

A Texas-sized particle collider that was abandoned due to its Texas-sized budget.

On Japan's Tashirojima Island, cats are king.

The remains of one of America's first radiation testing grounds still rest ominously in a Georgia forest.

Charles Babbage's proto-computer, painstakingly brought to life.

Giftshop catering to cryptozoologists and anyone with a sense of humor.

Collective dedicated to restoring steam engines.

From the Difference Engine to the Cray-1, all under one roof.

Space program, pneumatics and more, bits and pieces, for movie sets or the common man.