Highgarden is a fictional castle located in the Reach, a fertile region in the world of A Song of Ice and Fire, created by author George R.R. Martin. It serves as the ancestral seat of House Tyrell, known for their wealth and influence in the realm of Westeros. The castle is famous for its beautiful gardens and abundant produce, symbolizing the prosperity of its ruling family. The architecture of Highgarden features elegant towers and sprawling gardens, making it a picturesque location. It plays a significant role in the political landscape of the series, often involved in alliances and conflicts among the noble houses of Westeros.