I recommend one-day tourist attractions in Xianyang: Xianyang Lake, Qianling Mausoleum, Maoling Mausoleum, Museum, Ancient Ferry, Shimen Mountain, Beiwutai Amituo Temple, City God Temple, Maoling Stone Carving Museum and Xianyang Old Street. Each of these places has its own characteristics and is suitable for learning about history and culture, appreciating natural scenery and tasting delicious food.