The Map was built in 18 months, from April 19, 1904 to October 29, 1905, with brick, mortar and a cement lining by the Guatemalan lieutenant colonel and engineer Francisco Vela on behalf of the then President of Guatemala Manuel Estrada Cabrera with the support of engineer Claudio Urrutia, who already had the topographical data of the Republic of Guatemala.

[2][3] Also, an underground tank of 60 cubic meters supplies the lakes and rivers, with an internal system of water currents based on the Theory of the level of the liquids by communicating vessels, which shows that the level operation and delimitation of the territory are exact, even in our days.

[3] The perimeter wall near the map is a handrail made with a series of six decorative medallions that are repeated throughout.

In the tour the images presented, combined with explanatory texts, place the visitor in the movements that were decisive to decide the transfer of the city to the Valley of the Ermita in 1776.

His name was given by his initiators, Carlos Francsico Marroquín, supported by his father Antonio Marroquín, and seconded by the board of directors of the Guatemalan Association of Authors and Composers, who began to plant trees of hormigo, declared as the Tree of Culture, of the Marimba and the Peace, and whose wood is used for the construction of the national instrument, between 1983 and 1984.