Colombia, officially the Republic of Colombia, is a country in South America. Colombia shares land borders with Panama to the northwest, Venezuela and Brazil to the east with and Ecuador and Peru to the south. It shares its maritime limits with Costa Rica, Nicaragua, Honduras, Jamaica, Haiti and the Dominican Republic. It is a unitary, constitutional republic comprising thirty-two departments. The territory of what is now Colombia was originally inhabited by indigenous peoples, with as most advanced the Muisca, Quimbaya and the Tairona. The capital and largest city is Bogotá, located in the center of the country.