On International Museum Day, we"re looking at the Centre Pompidou Málaga in Spain, an offshoot of the modern art museum in Paris. This location was introduced in 2015 as a pop-up branch—a temporary, underground space for exhibitions and multi-disciplinary experiences as well as workshops dedicated to younger audiences. Originally scheduled for a five-year run, it was extended until 2025. The piece we see here, "El Cubo," created by French artist Daniel Buren, is the only part of the museum that"s visible above ground. The glass cube functions as a multicolored skylight, its panels projecting tinted light into the subterranean museum"s courtyard below.