金边 ("Gold Edge") is the standard Chinese name for Phnom Penh, capital of Cambodia (
柬埔寨). The transliteration is loosely meaning-based: the city's name in Khmer means "Penh's hill," and the name was historically associated with gold-tipped pagodas at Wat Phnom. It's also used literally —
金边眼镜 = "gold-rimmed glasses."