The Museo Arqueológico Nacional (National Archaeological Museum) is located in Madrid, Spain, and is considered one of the most important museums of its kind in the world. The museum houses one of the most extensive collections of ancient art and artifacts in Spain, including pieces from prehistoric times to the modern era.

The museum's collections include objects from the Iberian Peninsula, Egypt, Greece, and Rome, among others. The Iberian Peninsula collection includes prehistoric and protohistoric objects, as well as objects from the Celtic and Roman periods. The Egyptian collection is considered one of the best in the world, with more than 5,000 objects that cover the history of the Nile Valley from prehistory to the Islamic period. The Greek collection includes objects from the Bronze Age to the Hellenistic period, while the Roman collection includes objects from the Republican and Imperial periods.

Other notable collections in the museum include the Hispano-Roman collection, with objects from the Roman province of Hispania, and the medieval collection, with objects from the Visigothic period to the end of the Middle Ages. The museum also houses important collections of Islamic and Andalusian art.

The museum's building is an important example of 19th-century Spanish architecture, designed by Francisco Jareño y Alarcón and built in 1867. The façade is decorated with sculptures and reliefs that represent various periods of Spanish history, and the interior features a grand central staircase and large exhibition halls.

The National Archaeological Museum is an important research center, with a library, photographic archives, and laboratories for the analysis of archaeological materials. The museum also organizes temporary exhibitions, educational activities, and guided tours, making it a popular destination for visitors interested in the history and archaeology of Spain and the Mediterranean region.