Just four at a time, visitors soon will be allowed access to a long-hidden space inside Florence’s Medici Chapel where delicate charcoal drawings sketched on the walls have been attributed by some experts to Michelangelo. The tiny 33-by-10 feet space was discovered in 1975 when officials were searching for a new exit from the Medici Chapel to accommodate increasing visitors. The museum's then-director believed that they were by Michelangelo, but the major scholars of his drawings dismissed the idea. A fierce debate continues to this day.