Giant Siamese turrets and saffron-robed monks at prayer seem a world away from the cut and thrust of Bangkok's traffic and sharp-suited businessmen. Hong Kong blends her own mix of modern and colonial. In between, Discovery sharpens the focus on Vietnam, home to islands that have given us bird's nest soup, the old-world homes of Hoi An close to Da Nang and the 2,000 monoliths that dot Ha Long.