EscapeRestart

Ok guys, this is my third map submission, i need to redo the second one, and im not sure if my second mario castle is being used or not? (hopefully it is!)
Anyway this is my london map consisting of big ben and tower bridge.
It has 2 secrets and lots to do!
It's 64x128x512 and its current number of voxels: 4,194,304 i could of had 64x128x256 but big ben was tiny bit to big! :(
Images:http://imgur.com/ylp0b,ccxoE,80NuL,K6Rx5,2bUWu,E5EOe,iUbft
Download link.dat: http://www.mediafire.com/?5kk1opr3mih882v *NOTE: Please could someone convert this to a .lvl file from .dat as i am on mac and cannot do this, i would be grateful ! *