Hi, don't be put off by the bad weather but do pack something warm and waterproof. There is a lot of walking to do in Venice so comfy footwear is a priority. The museum is interesting and nice and warm too. Be aware that out you visit the Doge's (which you should if you can) that it was very cold in there last week. Enjoy your visit.

En una mañana se pueden ver los dos

Ja, das kann man!

at least two hours - it's a very rich collection. Follow your interests, it's impossible to see everything. Molto impressionante per me è la biblioteca con le pitture di prima classe, la parte archeologica e la galleria di pitture nel piano di sopra.

puh, the ticket-situation in Venice is a bit obscure. There are so many proprietors......... The town-owned collections have a one-for-all-ticket. The church doesn't reduce, but there is a ticket for for some of them I can't suggest.. The Italian state has recently abolished all reductions for seniors. Sometimes on sundays entrance is free. Stay in good mood falling into this surprise-party!