An esteemed name in Canton's yum cha dynasty, Tao Tao Ju packs in the over-60s for dim sum wheeled out on heated carts. There's no menu; you'll be given a slip of paper which gets stamped each time you help yourself to a steamer off the cart, or a dish, such as fried noodles, from the kitchen kiosks.
The three-storied building here, along historic (but hectic) Shipu Lu, dates to the 1880s, but you wouldn't know it from the bling interiors. It was due for closure for renovations when we visited but should be open again by the time your read this.