Colombian Spanish (Spanish: español colombiano or castellano colombiano) is a grouping of the varieties of Spanish spoken in Colombia. The term is of more geographical than linguistic relevance, since the dialects spoken in the various regions of Colombia are quite diverse. The speech of coastal areas tends to exhibit phonological innovations typical of Caribbean Spanish, while highland varieties have been historically more conservative. The Caro and Cuervo Institute in Bogotá is the main institution in Colombia to promote the scholarly study of the language and literature of both Colombia and the rest of Spanish America. The educated speech of Bogotá, a generally conservative variety of Spanish, has high popular prestige among Spanish-speakers throughout the Americas.