The Cathedral of Cartagena de Indias stands on the north side of Plaza de Bolívar, the central square of the walled city. Officially the Metropolitan Cathedral Basilica of Saint Catherine of Alexandria, it has been the city's main church since the 16th century, though the building has been damaged, rebuilt, and modified many times over.
The interior is calm and cool, a welcome retreat from the midday heat. The yellow-and-white facade is one of the most photographed in the city. Mass is held regularly and the cathedral is open to visitors outside of services. The plaza in front is one of the best places to sit with a coffee and watch the city go by — horse-drawn carriages pass, vendors sell fruit and sweets, and the square fills with life from early morning to late at night.