Hung Lau is a house built between 1905 and 1910 on former farmland in Pak Kok, Tuen Mun, Hong Kong. It was used by the Revive China Society as a base for revolutionary activities against the Qing dynasty.
Wikipedia https://en.wikipedia.org/wiki/Red_House_(Hong_Kong)
Address 2 Castle Peak Road - Sham Tseng, Tuen Mun, Hong Kong
Coordinates 22°22'39.226" N 113°57'35.252" E