Impatient diners crowd around carts of steaming dim sum steered by fierce "trolley aunties" at Hong Kong's Lin Heung Tea House, one of the city's most famous restaurants, now fearing for its future.

Show your mum how truly special she is by treating her to a slap-up Dim Sum Lunch at Silver Waves Chinese Restaurant, high above the Chao Phraya River on the 36th floor of Chatrium Hotel Riverside Bangkok.