One America Plaza is a prominent skyscraper located in downtown San Diego, California. Completed in 1991, it stands at 500 feet tall, making it the tallest building in the city. The building features a distinctive blue glass exterior and is known for its unique triangular shape, which contributes to its striking appearance on the skyline. The skyscraper serves as a mixed-use facility, housing office spaces, retail shops, and restaurants. It is also home to several corporate offices and is a key part of the San Diego business district. One America Plaza is easily recognizable and has become an iconic landmark in the area.