This app seems quite comprehensive. Has travel wiki info plus an interactive map as well as a directory of hotels, restaurants architecture etc. It could be easily improved, and i am just figuring the app out, by having a overlay on the map of each of the different types of places of interest. Its all there but it does take some figuring.
A couple of other issues. The listing of sites in various categories seems random. Not alphabetical, not by geography. Simple a long list of names. Needs better organization. Hopefully will be updated at some point. A guide book with organization seems a better bet for now.
Cycledoc22 about Venice Travel Guide and Map, v6.1