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In front of the Provincial Capitol, it hosts concerts and various booths during the Bambanti Festival and has a pond, an amphitheater, and a monument to Queen Isabella II of Spain, after which the province was named.
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A monumental office complex. In the courtyard is a statue of the province's longest serving governor, Faustino Dy Sr. At the back is the governor's official residence, known simply as Balai (House).
A massive stadium with a track and field course. During the Bambanti Festival, this hosts the street-dancing competition involving teams from the different municipalities of Isabela.
A stadium with a seating capacity of 10,000. Opened in 2024, it hosts national-level competitions for indoor sports such as basketball and volleyball.
Houses a statue of Andres Bonifacio. It is also a common site for demonstrations.
Butaka
This, the largest in the world, was constructed within 29 days with a cost of ₱175,000.