The ruins culture is introduced in foreign countries and has risen in Hong Kong in recent years, ordinary people may feel that Hong Kong develops rapidly, there should not be too many ruins, but in fact, besides being found in remote New Territories, there are many hidden ruins in prosperous downtown area.Entering ruins is something like marching, which requires data collection, deployment and skill.This book is to uncover many unknown ruins, uses images, experience and data to show readers each characteristic ruin one by one in detail, and make people further understand the stories and histories in ruins.