An anonymous donor has pledged $12 million in cash and $3 million in art to the future Perez Art Museum Miami.
On Friday, officials from the Miami Art Museum announced the mysterious benefactor's gift prior to the opening of its new incarnation just a few months away.
The Herzog and de Meuron-designed new buidling is part of the museum's $220 million budget for the expansion project.
Developer Jorge Perez has given the largest donation so far from a single donor. He pledged $35 million in 2011, earning naming rights to the museum, to the dismay of some other benefactors. (His gift is now valued at $40 million due to a recent appraisal of his gifted artworks.)
The new 200,000-square foot museum on Biscayne Bay is set to open in December.
Other recent major gifts have included 300 artworks given by Debra and Dennis Scholl, longtime collectors and supporters of the arts in Miami.
Voters of Miami-Dade County have approved $100 million in bond funding for the museum.