The Palacio del Segundo Cabo (Segundo Cabo Palace) is located on the north side of Plaza de Armas Square, Old Havana. This majestic palace is Neoclassical in style and was built in 1772 with local limestone full of holes and calcareous marine incrustations. This building was first built as headquarters of the Spanish vice-governor. Currently, and after several reworkings during which it functioned as Post office, Senate Palace, Supreme Court, National Academy of Arts and Letters, or the Cuba Academy of Science, nowaday it belongs to the Cuban Ministry of Culture, and it hosts the Centre for the Interpretation of Cuba-Europa Relationship.

This is a 1760 Baroque palace venerated for the great beauty of its Andalusian patio. It has a fountain surrounded by tropical vegetation where you will find several tortoises. Before the Revolution, this monumental building was the headquarters of the Industrial Bank; nowadays it houses the El Patio Restaurant. Although it offers traditional Cuban food, it speciality is meat and crustaceous, dishes as the Cathedral Mixed Grill (a varied grill) and skewers of lobsters and shrimps. The bar serves a collection of wines beers, rums and cocktails. It is currently possible to buy souvenirs in the craftworks shop located in the former Casa de Baños House, on the western side of the Cathedral square.

The Museo del Automóvil (Automobile Museum) is located in an 1892 Neoclassical construction in Old Havana. This museum is divided in two exposition rooms, which share the entire collection composed by 30 promenade cars, two rigid trucks, a funeral carriage, a special vehicle, seven motorcycles, a semaphore, three fuel pumps and two didactic imitations. This museum has a very well preserved and interesting collection of old automobiles, among which are the noteworthy Thunderbird, Pontiac, and Ford T, among others. The oldest vehicle in the collection dates from 1905, and the latest one comes from 1989. Most of them are North American, although some cars were made in Italy, Spain, Germany and Great Britain. It houses automobiles related to specific people and others antiquated vehicles. An example of this is the Cadillac used by Ernesto Che Guevara when living in Havana, the 1930 Fiat from Flor Loynaz, or the 1959 Oldsmobile used by Commander Camilo Cienfuegos.

The Museo Alejandro de Humboldt (Alejandro de Humboldt Museum) is located in a Colonial house in Plaza de San Francisco de Asís Square, in Old Havana, Cuba. Its name comes from the German scientist Alejandro von Humboldt, who is seen as the second person to discover Cuba. This is a scientific museum dedicated to biology and its main objective is to preserve research and promote the historical Humboldt’s legacy. This institution enhances the labor of Cuban and international personalities whose contributions are considered relevant for the development of culture in general terms. It exhibits the historical trajectory of the scientific and botanic data he compiled throughout the island at the beginning of the 19th century, as well as a botanic exhibition which is fundamentally made up of ferns. In this museum there is a perfect copy of a Kritosaurus skeleton found in the desert and donated by the Mexican government, as well as an enormous Pterosaur skeleton, which is around 10 meters length. The House also has a conference room with capacity for 100 persons and a specialized library on German literature.