You know how people are always talking about Ft. Knox being really secure? Well, here is the civilian equivalent!

Iron Mountain Inc is a company specializing in data storage. The best known Iron Mountain storage facility is a high-security cave in a former limestone mine at Boyers, Pennsylvania near the city of Butler in the USA.

It has been in operation since 1950, and it is here that Bill Gates stores his Corbis photographic collection in a refrigerated cave 220 feet underground.
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Our buddy WebUrbanist has tirelessly researched and assembled four different articles to compliment the traditional 7 Wonders of the World that we’re already familiar with. Now we’ve also got:

• 7 Underground Wonders of the World
• 7 Submerged Wonders of the World
• 7 Deserted Wonders of the World
• and the 7 More Deserted Wonders of the World

I highly recommend checking them out, and if you’ve got 30 seconds please show some support by Digging this one (I did!).

Wow, Panoramas.dk is one of the greatest sites I’ve ever come across. It features a number of three dimensional panoramas which allow you to virtually look around a given space. This is a technology that can only flourish on the Web since you cannot move around inside a static photograph.

There are virtual reality panoramas of the Eiffel Tower, Carnival in Rio, a Camel Carts in Bikaner India, a human Zoo, an ariel view of Sydney Australia and even the Apollo Moon Landings.

The site can be a little difficult to navigate so I compiled the following list of several I enjoyed.
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A sort of south-of-the-border Fortress of Solitude, Mexico’s Cueva de los Cristales (Cave of Crystals) contains some of the world’s largest known natural crystals—translucent beams of gypsum as long as 36 feet (11 meters).

How did the crystals reach such superheroic proportions?

In the new issue of the journal Geology, García-Ruiz reports that for millennia the crystals thrived in the cave’s extremely rare and stable natural environment. Temperatures hovered consistently around a steamy 136 degrees Fahrenheit (58 degrees Celsius), and the cave was filled with mineral-rich water that drove the crystals’ growth.
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