Santo Antao is an island, not a city. It is one of the ten volcanic islands that make up the Cape Verde archipelago, an island country off the coast of West Africa. Santo Antao is known for its rugged and mountainous landscape, with deep valleys and steep cliffs. It is a popular destination for hikers and nature enthusiasts, with numerous trails and viewpoints offering stunning panoramic views. The island is also known for its agricultural production, particularly wine, sugarcane, and coffee. While there is no specific city named Santo Antao, the island is divided into several municipalities, including Porto Novo and Ribeira Grande, which serve as administrative centers for the island.