Apak Hoja Tomb, also known as Fragrant Concubine's Tomb, is a mausoleum located in Kashgar Old Town. It is the resting place of Xiang Fei, a Uighur concubine who was married to a Qing Dynasty emperor. The tomb is known for its beautiful architecture, intricate carvings, and peaceful atmosphere. Visitors can explore the tomb complex, learn about the history of Xiang Fei, and enjoy the serene surroundings.