A block south of Plaza Mayor stands the grand Palacio Cantero, built in 1830. It has a magnificent ladder and great neoclassical paintings performed by local and Italian artists. Painted pillars, scrolls, shells, pediments and drapes embellish the interior, eclipsing the historical artefacts and old furniture that now form the Trinidad's History Museum. 

The Museum of Archeology Guamuhaya, founded on May 15th 1976, in a beautiful mansion on the west side of the Plaza Mayor traces pre- and post-Columbian history. It exhibits in chronological order through 8 rooms objects belonging to the aborigines living in the South Central Region of the island of Cuba during the precolumbus era, as well as material evidence of the Colonial period of very diverse origin and a bill from the city of Trinidad and Valle de los Ingenios. Some of these objects are considered unique in Cuba.

Plaza Mayor, in the Historical Centre of Trinidad, is considered the second most significant square in the country, after Cathedral Square in Havana. This square captivates everybody for the Terpsichore sculpture, the dance muse, the white railings with delicate filigrees, the elegant Royal Palms trees and two greyhound guardians. It was restored by the inhabitants, and became the main place for religious processions, patron saint festivities, promenades and commerce. This delightful square is surrounded of colonial buildings:  Iglesia Parroquial de la Santísima Trinidad; the Palace of Count Brunet (now the Romantic Museum); the Museum of Archeology Guamuhaya (former Casa de Padrón); the Museum of Colonial Architecture (former Sanchez Iznaga residence). 

Set in the Plazuela de Jigüe, a tiny plaza shaded by one tree, is this colorful and historic restaurant (dating from 1720). An elegant Colonial-style restaurant, probably the best of Trinidad's state-run restaurants, El Jigüe (hee-gweh) is a brightly lit, nearly formal dining room in a handsome, airy colonial house. Its bright interior has high ceilings, chandeliers, and landscapes hung on white walls. The menu ranges from bistec of grilled pork to lobster in a red sauce (enchilado de langosta). The specialty, pollo al jigüe, is a Cuban version of chicken cacciatore, which comes in a clay pot with pasta and cheese and is served with salad and coffee.