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.
It is located at the intersection of avenues Córdoba and Callao.
Wikipedia https://en.wikipedia.org/wiki/Callao_(Line_D_Buenos_Aires_Underground)
Address 1782 Avenida Córdoba, Ciudad Autónoma de Buenos Aires C1055AAU, Argentina
Coordinates -34°35'58.694" N -58°23'33.632" E
