The Denver Museum of Nature & Science on Friday announced it received the largest gift in its history and it plans to use the money on a “remarkable transformation.”

The museum said it is launching a new East Wing Project thanks to a $20 million gift from the Sturm Family Foundation.

“This project will rejuvenate our historic theater, lobby and plaza, ushering in a new era of possibilities for our community,” the museum said in an email. “The updated venue will seamlessly blend indoor and outdoor spaces, revolutionizing the way you engage with the museum and City Park.”

Construction on the project is expected to start in April and will cause a temporary closure of the museum’s Inifnity Theater through late July, museum officials said.

The museum plans to remain open throughout the construction and will post updates throughout the process.