Fodor's Expert Review Casa de la Obrapía
This house is named for the obra pía (pious work) with orphans that was carried out here in colonial times. Its elaborately wrought Baroque doorway is thought to have been carved in Cádiz around 1686. The architecture of the interior patio is based on North African fondouks (inns) and, later, of Spanish corralas (patios). There's much to see here: arches of different sizes and shapes, vases decorated with paintings by Spanish painter Ignacio Zuloaga, as well as a collection of old sewing machines and needlecraft paraphernalia.
The Alejo Carpentier artifacts (including the car he used in Paris) are still there, but locked up in a special room that you must get permission ahead of time to see.