The Tate Modern in London has announced that its hotly anticipated £260 million ($401 million) extension, designed by Herzog & de Meuron, will open to the public on June 17, 2016.

The extension and renovation will increase the Tate's display space by a whopping 60 percent, allowing a much greater portion of the museum's collection of modern and contemporary art to be shown. To mark the occasion, the new Tate Modern will reopen with a complete re-hang, showing works by over 250 artists from 50 countries.