San Juan, PR

ZIP code 00910 encompasses the historic Old San Juan district in San Juan, Puerto Rico. This area is home to iconic landmarks such as the Castillo San Felipe del Morro, a 16th-century fortress overlooking the Atlantic Ocean, and the colorful buildings along Calle Fortaleza. Visitors can also explore the Cathedral of San Juan Bautista and Paseo de la Princesa, a picturesque promenade along the city walls.