Tlacotalpan, a Spanish colonial river port on the Gulf coast of Mexico, was founded in the mid-16th century. It has preserved its original urban fabric to a remarkable degree, with wide streets, colonnaded houses in a profusion of styles and colours, and many mature trees in the public open spaces and private gardens.
Criteria for inclusion as a World Heritage Site
|ii||To exhibit an important interchange of human values, over a span of time or within a cultural area of the world, on developments in architecture or technology, monumental arts, town-planning or landscape design.||All|
|iv||To be an outstanding example of a type of building, architectural or technological ensemble or landscape which illustrates (a) significant stage(s) in human history.||All|
About the source: UNESCO
Within UNESCO's broad remit, this specialised agency of the UN works towards international cooperation agreements to secure the world's cultural and natural heritage, designating venues of exceptional value as World Heritage Sites.