青楼

青楼	qīng lóu	(literary) brothel / pleasure quarters
青	Qīng	abbr. for 青海, Qinghai Province
青	qīng	green / blue / black / youth / young (of people)
楼	Lóu	surname Lou
楼	lóu	house with more than 1 story / storied building / floor / CL:层,座,栋