Cross Section Diagram of Fukushima Containment Structure

from The Capacity Factor (click on the link below and scroll down)

http://uvdiv.blogspot.com/

GE Mark I Containment System (begins on page 17, of 31 pages)

https://netfiles.uiuc.edu/mragheb/www/NPRE%20457%20CSE%20462%20Safety%20Analysis%20of%20Nuclear%20Reactor%20Systems/Containment%20Structures.pdf