Fort San Domingo is a historic fortification located in Tamsui, Taipei, Taiwan. Built by the Spanish in 1629, it was later occupied by the Dutch and the Qing Dynasty. The fort served as a strategic military outpost to protect trade routes and control the surrounding area. Today, Fort San Domingo is a popular tourist attraction, showcasing its well-preserved architecture and offering panoramic views of the Tamsui River. Visitors can explore the fort's museum, which highlights its rich history and the various cultures that influenced the region over the centuries.