Final answer:
Mnesicles designed the Propylaea, the monumental gateway to the Acropolis.
Step-by-step explanation:
Mnesicles designed the Propylaea (437-432 BCE), the monumental gateway to the Acropolis. It funneled all traffic to the Acropolis onto one gently sloped ramp. The Propylaea created a massive screen wall that was impressive and protective as well as welcoming (see Figure 9.4.4).