Cuba's oldest museum was founded in 1899 by Emilio Bacardí Moreau, the former Santiago mayor whose rum-making family fled to Puerto Rico after the Revolution. It is just a few metres from the Parque Céspedes, in the heart of the city. The museum has an excellent collection of Cuban art, as well as some European works, some items from the wars of independence and an archaeological hall that features a 3,000-year-old Egyptian mummy, two Peruvian skeletons and a shrunken head. It houses the most important painting gallery in Cuba, displaying an enviable collection of colonial painting dating back two centuries.

This is one of the continent's oldest cathedrals, the seat of the fourth bishopric of America, although the building that it currently occupies was built in 1922, thus reflecting the eclectic style of architecture. One of its sides houses the Ecclesiastical Museum, with a valuable collection of furniture, paintings and sacred artefacts

Constructed in 1516, this structure is reputed to be Cuba's oldest house one of the oldest in the Americas, although many historians now doubt that claim. Noticeable for its black-slatted balconies, it is one of Santiago's top attractions. Diego Velázquez, the Spanish conquistador who founded the city and was the island's first governor, lived upstairs. At the moment this old house works as Cuban Historical Colonial Environment's Museum, its rooms overflow with period furniture and carved woodwork and encircle­ two lovely courtyards. Inside you'll find period beds, desks, chests, and other furniture. On the first floor is a gold foundry. Memorable are the star-shape Moorish carvings on the wooden windows and balconies, and the original interior patio with its well and rain-collecting tinajón vessel. An adjacent house is filled with antiques intended to convey the French and English decorative and architectural influences—such as the radial stained glass above the courtyard doors—in the late 19th-century.

The Spanish fortress known as El Morro, south of Santiago, was constructed between 1638 and 1700 and was designed by Giovanni Antonelli, the Italian architect and engineer responsible for fortresses bearing the same name in both Havana and San Juan, Puerto Rico. El Morro was built to ward off pirates (and rebuilt after a 1662 attack by the English pirate Henry Morgan). Today, its solid walls house the Museum of Piracy, its rooms also reflects the main events connected with the naval battle of Santiago de Cuba, episode of the Spanish-Cuban-American in 1898 and photographs related to the events of Maine , the Spanish and U.S. military leaders, Admiral Pascual Cervera and Vice Admiral Sampson and planes and coastal defenses and batteries of El Morro. There are wonderful views from interior rooms, which have wooden floors and stone walls, as well as from various terraces.