The Lanuvino Civic Museum was established following the discovery of archaeological finds at the end of the nineteenth century, which took place in Piazza della Maddalena during the construction of the Palazzo Comunale, and it was precisely in the rooms on the ground floor of the same building that, since 1913, originally found its home . Decommissioned due to the structural damage caused by the last world war, it returned to its original location since 2001 to preserve and enhance the archaeological evidence from the territory of ancient Lanuvium and the medieval Civita Lavinia. Since then the museum collections have been enriched both with the material found on the occasion of the excavations carried out by the Civic Museum in collaboration with the Superintendency for Archaeological Heritage of Lazio and Southern Etruria and by the School of Specialization of Sapienza University of Rome, and of the material recovered by the Tax Police Unit of Rome of the Guardia di Finanza in the important discovery of the archaeological site of Pantanacci which took place at the end of summer 2012. In 2013, the Lanuvio Diffused Museum was set up and started with the inauguration of a new museum space located in Piazza Antonino Pio n. 24 (a few steps from the Town Hall), called Sala della Stipe Votiva in Località Pantanacci. In 2017, the section relating to the finds from the same stipe was expanded and, in addition, those from the Ajello stipe, with the opening of another exhibition space, this time located in Via Roma n. 1a, and called the Sala della Grotta del Serpente (of which III century BC statue, some portions in peperino are preserved inside).
Also in 2017, the following dates back: the opening of a section dedicated to the fifteenth century called "The Castle of Civita Lavinia - Stendhal prison" housed inside the Medieval Tower overlooking Piazza Carlo Fontana; the construction of the Archaeological Route of the Sanctuary of Giunone Sospita (which connects various terraces of Colle San Lorenzo where, between the end of the nineteenth and the beginning of the twentieth century, the remains of the Temple of Juno and the Portico cd of the Antonini); the inauguration of an exhibition, now permanent, set up in the Sala delle Colonne located on the ground floor of Villa Sforza-Cesarini (built in the middle of the sanctuary area at the beginning of the twentieth century), entitled "Sacra Nemora - the culture of the sacred in the sanctuaries in Albana area. Archaeological finds and recoveries of the Guardia di Finanza "organized by the Lanuvino Civic Museum in collaboration with the MiBACT and the Tax Police Unit of Rome of the Guardia di Finanza. Returning to the Civic Museum, the various rooms in which it is divided, house a Roman and pre-Roman section, an epigraphic section, a section dedicated to daily life in antiquity and, since 2015, a section dedicated to the temple of Juno Sospita. This last section houses a model commissioned by the Accademia Nazionale dei Lincei, reproducing the Templar area from which the protohistoric vases and grave goods (terracotta artefacts and bronze jewelry) exhibited in the same room are in scale 1:20. All sections are accompanied by a series of explanatory panels, historical photographs and more recently made photographs (including some aerial ones made with the drone) concerning the most significant finds and monuments, reconstructive hypotheses and in-depth information sheets that allow you to approach the ancient world with simplicity and also enjoy the museum collections freely.