Cartagena is located next to the sea on the Caribbean coast; it is the capital of Bolívar Department. Founded in 1533 by Pedro de Heredia, Cartagena is the 5th largest city in Colombia. It is surrounded by a great wall that used to protect it from pirates and invasions. Its architecture includes beautiful colonial houses and picturesque streets, full of life, a delicious sea breeze and numerous tropical fruits, all forming part of the charm of this famous city. It is considered the most beautiful colonial city in South America.