The “Edificio Transparente” in Porto, designed by Manuel de Solà-Morales and later remodeled by Carlos Prata, is a striking architectural feature along the waterfront of the City Park and Montevideu Avenue. This transparent structure, initially controversial due to its lack of a defined functional program, serves as a prominent visual landmark. Its design emphasizes openness and integration with the surrounding landscape, creating a seamless connection between the park and the waterfront. The building’s transparency allows for an unobstructed view of the natural surroundings, enhancing the experience of the public leisure spaces it complements. In 2007, Carlos Prata’s intervention introduced functional elements, particularly in the catering sector, adding practical value to its aesthetic appeal.