Maps on the Venetian territorial and commercial expansion.
The first map (Wikimedia commons) notes the initial Venetian territory (dark red color), annexations till the 15th cent (red), annexations till 1797 (light red), temporary annexations (pink), principal trade routes (yellow), main Venetian emporia and the hostile Ottoman Empire (green).

The second map (in German) also notes the Venetian territorial and commercial expansion till 1797. Note the flag of the Venetian Republic (actually an oligarchy).