Ballajá Barracks is a military barracks located in San Juan, Puerto Rico. It was built from 1854 to 1864 for the Spanish troops established on the island and their families.
Wikipedia https://en.wikipedia.org/wiki/Ballajá_Barracks
Official website http://www.ballaja.com/index-eng.html
Address Calle Beneficencia, San Juan, 00926, Puerto Rico
Coordinates 18°28'4.074" N -66°7'11.205" E