thanks, hadn't thought of Istanbul =)
Salzburg means "salt castle". People get confused because "berg" is the German word for mountain and "burg" is the word for castle.
25 a) has been confirmed as Marco Polo - someone foundthe identical image.
Salzburg Can be translated to Salt Mountain apparently (someone mailed a link to a newspaper article that mentioned it). 25 d) is definitely Sir Morton Stanley - we found the same picture. Still stuck on 25 b) and not convinced on 24 a). Do you agree that 25 e) is Magellan or do you think John Cabot ?