Callao is a station on Line D of the Buenos Aires Underground.
The station was opened on 23 February 1940 as part of the extension of Line D from Tribunales to Palermo.
[1] It is located at the intersection of avenues Córdoba and Callao.
[2] Media related to Callao (Line D Buenos Aires Underground) at Wikimedia Commons
This Buenos Aires Underground-related article is a stub.