This is the Doctor's Time And Relative Dimensions In Space (called a TARDIS) from the BBC Television show Doctor Who.
About this creation
The TARDIS, for the people who don't know, is actually a time / space machine that is WAY bigger on the inside. It can turn it's shape into other objects, but since the beginning of the show (which is a Fantastic piece of modern science-fiction, by the way!) in the mid 1960's, it has bee stuck in the from of a British Public Police Call Box. This was originally done to save money on studio props, but it has become a icon in the process of the last 50 years or so!
NOTE: Credit for the outside of the Lego TARDIS design goes to Doctor Sinister. I modified his design into what you see here back in 2011, then color changed it from regular blue to dark blue in 2013.