Costa Concordia, Giglio, Italy-January 17, 2012: A luxury cruise ship ran aground in the Tuscan waters off of Giglio, Italy on Friday, January 13, 2012.

Another amazing collection of world cities’ skylines from all over the world.  Enjoy!

How Twitter and Flickr are used worldwide and where they are used the most.

We’ll have to wait till 2094 to see this rare phenomenon again.