But there is a rhythm to that noise -- a beat, a municipal pulse that resonates in the city's soul.

BBC: This is Buenos Aires week

While they made plenty of noise, very few of these traders managed to beat the U.S. stock market after charging their investors rich fees.

FORBES: The 40 Highest-Earning Hedge Fund Managers And Traders

During a recent visit to Windsor by a Wall Street Journal reporter, Windsor resident Gary Grosse played several recordings he said came from the noise, which modulated from metallic grating to a pulsing beat.

WSJ: Canadians Make a Racket Over Mysterious 'Windsor Hum'