I just heard this ridiculous story about B-29's flying from aircraft carriers made of ice! Im sure everyone has heard the whole floating runway, made of ice or "pykrete" (ice mixed with sawdust) The concept never took of from the drawing board. But this is the first time i have heard that it could have housed and deployed B-29 bombers from its decks.....
P.S Not sure why but thats a Lancaster in the pic not a B-29. Source: Quora
German soldier from the 10th Regiment of the SS Totenkopf on guard on the roof of the Royal Castle in Krakow. Visible panorama of Krakow. Source: Historical times