Gonzalo Marín 101
Gonzalo Marín 101 or Citibank located in Arecibo, Puerto Rico is an occupied, private building used for commercial purposes which was listed on the US National Register of Historic Places on November 19, 1986. The structure located at Calle Gonzalo Marín 101, on the southeast corner of Calle Hostos de Arecibo in Arecibo barrio-pueblo, was built in 1908 to house banking institutions. For most of its history, the structure was occupied by the most important banking institutions in Arecibo. In the 1930s, First National City Bank, the first American bank in the northwest region of Puerto  Rico opened its branch in this building. The bank quickly gained importance as it became the financial center of the North American sugar estates in the Arecibo region. Banks in Puerto Rico helped keep sugar as the main line of the economy through direct financing of the sugarcane industry until 1950. This building represents the transition between the Spanish Neoclassical period and the new Baroque architectural movement that was already widespread in the United States for the first decade of the 20th century. The use of the pediment and the decorative moldings around the doors contrast sharply with the austerity  representative of the Spanish Neoclassical period. This structure is the only example of the transition period between one style and another in Puerto Rico.