It's a fascinating spectacle, looking down on row upon row of open-air concrete wash pens, each fitted with its own flogging stone, while Mumbai's dhobis (around 200 dhobi families work together here) relentlessly pound the dirt from the city's garments in a timeless tradition. Known as the world's largest outdoor laundry, the municipal Dhobi Ghat in Mahalaxmi is where Mumbai's traditional washerfolk -- or dhobis -- provide a wonderful service, collecting dirty laundry, washing it, and returning it neatly pressed, all for a very small fee. Stubborn stains are removed by soaking garments in a boiling vat of caustic soda; drying takes place on long, brightly colored lines; and heavy wood-burning irons are used for pressing. At the very least, it's a great photo opportunity, though most locals think it rather amusing that their everyday work arouses such curiosity. (Note that there is another Dhobi Ghat off Capt. Prakash Petha Marg, Colaba, which may be more accessible.)