Cagayan Provincial Capitol

The seat of the Archdiocese of Tuguegarao. The church with the belfry is the biggest Spanish colonial church in Cagayan Valley built by the Dominicans. It was constructed from 1761 to 1767 under the supervision of Fr. Antonio Lobato, OP. The cathedral suffered massive destruction in World War II losing its pipe organ, three wooden retablos, pulpit, wooden choir loft and the painted wooden ceiling all of which were from the early 18th century. The complex was rebuilt by Msgr. Bishop Constance Jurgens who is now entombed inside the church. The Cathedral is also said to be one of the beautiful structures that stood in the land and because of that impression, its portrait can also be seen in Vatican City. The traditional ringing of the cathedral bells for the Angelus and during Mass is still being practiced today. Its belfry is visible from a distance of .

This is a general museum that houses an extensive collection of artifacts, antiques, ethnography, trade wares, heirloom pieces and liturgical works of the province and fossils of animals that once roamed the valley. The museum houses extensive data on the discovery of Callao Man by the National Museum of the Philippines. Since 2023, it is housed in the old provincial jail, which in turn used to be the Casa Tribunal de Cagayan that was built in 1877.

An elevated historic chapel established in 1604, 100 years older than the Sts. Peter and Paul Cathedral. American soldiers during the Philippine-American War used it as headquarters in 1899. St Hyacinth is the patron saint of the city whose feast is celebrated every August 15 coinciding with the Pav-vurulun Festival. The oldest brick structure in the city is the first parochial building built by the Dominican fathers in Tuguegarao. The current structure is the latest in a process of rebuilding beginning in 1724, in 1892 after it was destroyed by an earthquake and reconstruction after World War II. The chapel was not heavily damaged during the war and as a result retains its original wooden retablo which dates to the 18th century.

The old town square, flanked by the Cagayan Museum and Tuguegarao Cathedral. At the center is an ornate monument to the national hero, Jose Rizal.

It was founded by the Sisters of St. Paul of Chartres in 1907, who came to Cagayan upon the invitation of Bishop Dennis Dougherty. The school had its operation in a Spanish Convento, adjoining the Cathedral of Tuguegarao. The institution transferred to its present location in 1934 after it was acquired from the Dominican Order. The entire building complex became hospital and garrison of the Japanese forces during World War II and was bombed by the combined American and Filipino ground troops during the liberation in 1945. The institution became the first Catholic University in Cagayan Valley in 1982.