Paddys Markets in Haymarket is the loud, cheerful heart of bargain Sydney, a sprawling undercover hall that has been trading for well over a century. Stalls pile high with fresh produce, souvenirs, clothing and every kind of knick-knack, and haggling is part of the fun. It sits right beside Chinatown, so it pairs well with a dumpling lunch. Come on a weekday morning for the calmest run of the aisles, bring a sturdy bag for produce, and keep some cash handy as many stalls prefer it.