Casa Ulanga

Casa Córdova, also known as Casa de las Conchas (Spanish for 'seashell house'), is a historic building located at 14 Gonzalo Marín Street in the historic center of the Puerto Rican municipality of Arecibo. The historic residence, now a commercial building, was added to the United States National Register of Historic Places on November 17, 1986.The wood and brick commercial-residence building was built in 1898 during a period of architectural transition inspired by Neoclassical and Beaux-Arts styles.

Palacio del Marqués de las Claras or Casino de Arecibo, as it is also known, was built in 1888 by Fernando Fernández Umpierre, Marqués de las Claras. At the end of the 19th century, the Marqués de las Claras distinguished himself as one of the most prominent and wealthy owners of sugar estates in Puerto Rico. He was known for his sponsorship of the arts and cultural events.After the death of the Marqués in 1896, the palace, located in Arecibo barrio-pueblo, became the meeting place of the aristocratic elite of Arecibo. It was the meeting place for the conservative politicians of Puerto Rico, a place to discuss the politics related to the finance and government administration during the Spanish colonial period in Puerto Rico. Currently, the palace is a venue for important social activities. It was listed on the National Register of Historic Places in 1988.The neoclassical design of the facade makes use of ornamentation to differentiate the piano nobile (the principal floor) of the palace from the first floor. The second level is elegant and refined. The asymmetric entry stands out slightly with ornamental detail.

Gonzalo Marín 61 (also known as the Abreu Residence) is a historic building located in the historic and administrative center of Arecibo, Puerto Rico. It was added to the United States National Register of Historic Places on October 19, 1986. Although an exact date of construction cannot be determined, based on historic photographs of the area, it can be said that the structure already existed on this lot by 1860. The historic building is currently abandoned. The Abreu Residence is a two-story, masonry and wood, commercial and residential building on the south side of Gonzalo Marin Street, in the historic center of Arecibo. The base level is of stuccoed load-bearing masonry and the main, upped floor is of timber and clapboard construction. The composition consists of four bays, spaced evenly and symmetrically at both the ground and upper stories. At the commercial base level, two central rectangular entrance bays are flanked by smaller, square window openings. Each opening is articulated by heavy, planar, masonry surrounds. Bay number two contains original, wooden, double doors with glass transoms, but bay number 3 has been altered to house aluminum and glass commercial doors. A planar pilaster strip frames the east and west extremes of the ground-floor. A continuous base mold and a simple cornice delineate the lower and upper limits of the masonry base-story, respectively.Although there is no documentation as to the original appearance of the house, it can be assumed from the prototype that the facade remains true to the original form and that an original, ceramics tile roof was replaced by metallic sheets during the early twentieth century. Traces of the ceramic tile are visible from the interior, above the timber construction.

The Catedral de San Felipe Apóstol, or in English, Cathedral of St. Philip the Apostle, is a Catholic cathedral located in Arecibo, Puerto Rico. It is the seat of the Diocese of Arecibo .

Edificio Oliver in Arecibo, Puerto Rico was built in 1914. The building houses government offices for the municipality of Arecibo. A Beaux Arts-style building, it was the first building made of reinforced concrete in the Arecibo area.It is located in the town center on the location of the former "King's House", the military garrison building built by the Spanish government in 1765. After 1868 that building became a courthouse, a police headquarters, and a public school then was demolished in 1913. The Edificio Oliver was built soon after in the corner location and was used both as a residence and for commercial purposes. It served also served as a foreign consulate.Edificio Oliver was listed on the National Register of Historic Places in 1986.

The Corregimiento Plaza Theater in Arecibo, Puerto Rico was built in 1876 as a three-story brick Classical Revival theater building known as Teatro Oliver or the Oliver Theater. It was listed on the National Register of Historic Places on January 6, 1986. It was built with a mechanism that could raise and lower the orchestra floor so that the space could be used for different purposes. It was remodelled in 1919 after a series of earthquakes (presumably including the 1918 San Fermin earthquake) damaged it, and it was remodelled again in the 1930s. The floor moving mechanism was then removed, the stage was shortened, and balconies were replaced by a new mezzanine. In 1955 it became exclusively a movie house, with a cinemascope screen. It operated as a movie house until 1984 when it was closed.

Paseo Víctor Rojas, also known as El Fuerte or Paseo de Damas (Ladies' Promenade), in Arecibo, Puerto Rico, was built in 1881. It was listed on the National Register of Historic Places in 1986.It is a rectangular promenade that was built over the ruins of San Miguel Fort, in part using stone from the ruins.The original paseo was damaged in the Hurricane of San Ciriaco in 1899.It is unique as a place constructed for the "Isabellan", i.e. equivalent to "Victorian" pastime of promenading. It acquired the name "Victor Rojas" for the location of a memorial to this person, a fisherman, who undertook rescues starting from near this location, to save persons from boats foundering.

Casa Alcaldía de Arecibo (Spanish for Arecibo City Hall), formerly known as the Casa Consistorial, is the historic city hall and municipal administrative headquarters of the Puerto Rican municipality of Arecibo located in the Plaza Mayor in downtown Arecibo (Arecibo Pueblo). Constructed by the Spanish between 1850 and 1866, more than 155 years ago, this government building exhibits the standard Neoclassic style that distinguishes the Spanish architecture of the time. The building was added to the National Register of Historic Places in 1986.

Gonzalo Marín 101 (also known as the Old Citibank Building) located in Arecibo, Puerto Rico is a private building used for commercial purposes that was listed in the US National Register of Historic Places on November 19, 1986.The structure located at 101 Gonzalo Marín Street, on the southeast corner of Hostos de Arecibo Street 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.

The Diocese of Arecibo (Latin: Dioecesis Arecibensis Spanish: Diócesis de Arecibo) is a Latin Church ecclesiastical territory or diocese of the Catholic Church and consists of half of the northern portion of the island of Puerto Rico, a commonwealth of the United States. The mother church is the Catedral de San Felipe Apostol located in City of Arecibo. Its jurisdiction includes the municipalities of Isabela, Quebradillas, Camuy, Hatillo, Arecibo, Barceloneta, Florida, Manatí, Vega Baja, Vega Alta, Lares, Utuado, Ciales, Morovis, Corozal, and Orocovis.

The Río Grande de Arecibo (Arecibo River) is a river of Puerto Rico. The headwaters lie in the mountains to the south of Adjuntas. From there it flows north until it reaches the Atlantic Ocean near Arecibo. The tributaries lie along the side of the Cerro de Punta and the Utuado pluton. It flows through the northern, passing along a gorge that is 200 m deep and 800–1,200 m wide. It flows through the middle of Puerto Rico.The tributaries to Río Grande de Arecibo basin are Vacas, Pellejas, Garzas, Saltillo, Cidra, Grande de Jayuya, Caguana, Caonillas, Yunés, Limón, Jauca, Tanamá and Santiago rivers.

The Casa de la Diosa Mita (in English, the House of the Goddess Mita) was a house located in Arecibo barrio-pueblo in Arecibo, Puerto Rico. The house itself is unique because of its Beaux-Arts architectural design, and was listed on the National Register of Historic Places on September 9, 1988. The NRHP registration form states that in the future the NRHP record should be updated to reflect its significance because of who lived there. A self-professed goddess lived there. When she was living in this house in 1940, Juanita "Mita" García Peraza declared herself to be God and began the Mita Congregation, which continues to this day with its headquarters in Puerto Rico and chapters in the United States, Canada, Venezuela, Colombia, Ecuador, Panama, Costa Rica, Mexico, El Salvador, Spain and the Dominican Republic. By 2017 the house was in ruins and what remains is a shell of the structure.