a large stained-glass window designed by Fernand Léger. Separating the Plaza Cubierta from the academic buildings and sporting facilities to the east is the Jorge Rodríguez Plaza, more commonly known as the Tierra de nadie (English: No-man's land). The Tierra de nadie is a public space that is one of the green spaces in the University City of Caracas. It takes its name because it is an area that belongs to none of the faculties that surround it. Maciá Pintó describes the functional and artistic design of the Plaza Cubierta as: Sports facilities The Olympic Stadium of the university is one of the design elements specifically highlighted by UNESCO. It is primarily an association football stadium, and the home ground of Caracas F.C.; it has seats for almost 24,000 people. As well as the football pitch, the Olympic Stadium contains a full size running track and spaces for athletic field events, including jumping tracks and sandpits. It also hosts rugby games. The Covered Gymnasium is also public space that is run by the university. It is at the far northern end of the university campus, with the exception of the Botanical Garden, and is noted for its shape and peculiar roof. It also features a giant mural, marking the edge of the campus by the freeway, featuring important historical figures of Venezuela. The Estadio Universitario is a baseball stadium, next to the Olympic Stadium, and is the home field of two teams. It can hold just over 25,000 people. Artwork Several artworks placed on the campus had been pre-fabricated and needed adjustment to fit either physically or aesthetically. Some of these works include Arp's Berger des nuages, Laurens's L'Amphion, Pevsner's Projection dynamique dans l'espace au 30° degré, and Lobo's Maternidad. Most other works were designed in a process from afar, with heavy conversation between artist and architect, but some murals were created on-site, including the works of Léger and Vasarely.:359 The international artists who contributed to the campus include: Hans Arp and Sophie Taeuber-Arp, André Bloc, Alexander Calder, Wifredo Lam, Henri Laurens, Fernand Léger, Baltasar Lobo, Antoine Pevsner, and Victor Vasarely. Venezuelan artists involved include: Miguel Arroyo, Armando Barrios, Omar Carreño, Carlos González Bogen, Pedro León Castro, Mateo Manaure, Francisco Narváez, Pascual Navarro, Alirio Oramas, Alejandro Otero, Héctor Poleo, Braulio Salazar, Jesús-Rafael Soto, Víctor Varela, Oswaldo Vigas, and Lisbhet Mariela Ojeda D'Elía. World Heritage Site The campus was designated a