This is also cool. I particularly like the artistic flair on the enternal structure.
SAFE DOMES Hurricane Tornado Disaster Shelters
http://www.hurricanesurvival.net/
Safe Domes are 8 ton transportable concrete and steel domes capable of withstanding 200 mph winds or more. Several Safe Domes withstood the 130 mph winds of Wilma in West Palm Beach, Florida with absolutely no damage. Mrs. Burton said that if it wasn't for the sound of flying metal she wouldn't have known there was a hurricane outside.