% Arabica Bangkok Siam Discovery Kiosk is a takeout cafe next to the entrance of Siam Discovery closest to Siam Center. It serves Americano, Spanish Latte, and Iced Kyoto Latte, along with several kinds of beans. The kiosk opens at 7 a.m., so coffee is available before the mall opens, and mall seating nearby can be used after taking the coffee away. Lines can get long.