Baku, the capital and commercial hub of Azerbaijan, is a low-lying city with coastline along the Caspian Sea. It's famed for its medieval walled old city, which contains the Palace of the Shirvanshahs, a vast royal complex, and the iconic stone Maiden Tower. Contemporary landmarks include the Zaha Hadid–designed Heydar Aliyev Center, and the Flame Towers, 3 pointed skyscrapers
