The absolute worst thing about running in a city, any city, is traffic, which will at least slow you down... and might get you killed. And the second worst thing is stop signs and stop lights. What you want is to get some flow, some momentum, get your running rhythm down, and be able to turn corners with confidence you’re not about to run into six smokers or a bus. Prospect Park’s gently hilly and largely residential ’hood is ideal for scenic runs. Circle the Witch’s Hat tower, and dream of drinking its contents once your legs give out.