CNN  —  Behind the red-bricked facade and marble friezes of the National Gallery of Denmark, visitors are now able to see nearly all of Michelangelo’s existing sculptures — the “most comprehensive” exhibition of his sculptural work assembled in 150 years according to the institution — and more than 1,000 miles away from where the majority of the Renaissance artist’s works are typically seen. But to do so, the museum did not haul the 17-foot-tall David from the Galleria dell’Accademia in