On the banks of the Brazo de Mompox River in Mompox. Santa Cruz de Mompox is known for the preservation of its colonial architectural features, as expressed by the mixture of its Spanish and Indian styles. UNESCO named the historic center of Mompox as a World Heritage Site in 1995. Today, most of the colonial buildings are still used for their original purposes, which provides an excellent example of a Spanish colonial city. Of particular note is the wrought ironwork decorating doors, railings, and window grills along the streets, notably on Calle de la Albarrada, Calle Real del Medio, and Calle de Atrás. Notable churches include Santa Bárbara (built 1613), San Agustín (built 1606), San Juan de Dios, and Immaculate Conception. There is also a museum of colonial art that houses religious gold colonial masterpieces.