Tucked away in Beijing's urban landscape, Zhenwu Temple is a hidden gem for Taoism enthusiasts. This ancient shrine dedicated to the Dark Warrior deity features grey-brick architecture from the Ming-Qing era, where incense swirls around stone carvings amid monks' chanting. Don't miss touching the millennium-old turtle stele believed to bestow longevity, and if visiting in winter, you might witness mesmerizing ritual exorcisms – an unforgettable immersion into China's living cultural heritage.