The Amazing Venice City Built With Lego

From the photos of this creation of the Venice city built with Lego everything is so detailed like the St Mark’s Square. There is what looks like an open market with vendors and people in it. Then the canals where there are detailed gondolas that look almost like the real gondolas that are seen in Venice. 

There are pictures of the bridges that are in Venice city built with Lego, there must have been a lot of thought put in to how to make those bridges. But how did they get the details down for the making of those bridges to make them look just like the real bridges in Venice. Some of those pieces that were used in this creation might have had to be combined with other Lego sets.