Perspective, the fourth Construction <l:6,66>Advance<e>, builds on the skills of engineering and architecture to create a new art form focused on the human individual. Perspective reflects a shift in thinking, especially about man's relationship to God. In this way, the <l:2,20>Cathedral<e>, the embodiment of Perspective, is both representative of the community's religious faith as well as the beginning of a religious movement centered on the individual. An unprecedented development of technical imagination also leads to a <l:6,64>Wonder<e>, the <l:3,16>Leonardo's Workshop<e>, which improves all combat units.