California Academy of Sciences Free Day

October 15

Every third Wednesday of the month, the newly-reopened California Academy of Sciences offers free admission to all guests.

Located in San Francisco's Golden Gate Park, this groundbreaking institution has been a city landmark for more than 150 years, and is the only facility in the world to combine a museum, aquarium, planetarium, and world-class research and education programs under one roof.

This unique combination allows visitors to explore everything from the depths of a Philippine coral reef to the canopy of a Costa Rican rainforest to the outer reaches of the universe — all within a single visit.

The new facility — which employs sustainable materials and energy-saving technologies — unifies the Academy's original array of 12 buildings into a single, modern monument to eco-conscious architecture. Crowning the building is the Living Roof, a 2.5-acre expanse of native California plants and wildflowers, which creates a sense of transparency and connectedness between the building and the surrounding park.