Cities of Dooglamoo is a mod that will allow us to create large cities, with a good number of varied buildings without having to build anything. The mod adds several blocks with predefined constructions, which will spawn different types of buildings on the world. But it will not be by clicking and a skyscraper will appear, we will have to meet certain requirements.
When placing a block containing a building or structure, that block will use the Minecraft chat to tell us what materials it needs to begin construction. So we have to get the materials and place them in the interface of the building block, pressing the right button on them.
Generating structures from this mod may temporarily take a few seconds or minutes to start constructions. In future releases, this might be fixed.