Historical Society Museum

Costa Mesa Historical Society Museum and Archives

1870 Anaheim Ave.
(949) 631-5918
Open 10 a.m.-3 p.m. Thursdays and Fridays

View a mind-boggling array of artifacts from 5,000 years of Costa Mesa history — from the first peoples to the City of the Arts — or find essential resources for your next research project.

Diego Sepulveda Adobe

Diego Sepulveda Adobe
1900 Adams Ave.
Temporarily closed to the public

Explore centuries of history when you visit one of Orange County’s oldest buildings in its gorgeous setting at Estancia Park.