Two things spoiled the impact of the Parthenon and the Acropolis complex in general for me.
First is that the structure was under renovation and was spider webbed with scaffolding. However, the last time I visited that area (1961) the building was also being renovated and surrounded with scaffolding. It makes me wonder if any progress was made in the last 52 years? But 52 years is just a blink of the eye in comparison with the age of the Acropolis structures.
Second (and this is from a guy who really loves dogs) in shooting the Acropolis from the Acropolis Park (below the hill) my olfactory senses were assaulted with the overwhelming and pungent odor of dog poop! Obviously, the "Clean up after your dog" routine is not practiced by the Athenians. At least not in the Acropolis Park!