Peralta Hacienda Historical Park
Check website for tour hours and special events. Once headquarters of the Rancho San Antonio Spanish land grant, this six-acre park contains the 1870 Antonio Peralta House and interpretive exhibits, a native plant garden, and changing exhibits on history and culture.
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A beautiful park in the Oakland hills, made up in part of "The Hights", the old estate of California poet Joaquin Miller. The park has some of the few remaining old-growth redwood groves in the East Bay. Lots of hiking and bike-riding opportunities.
This beautiful Art Deco theater (built in 1926) shows first-run movies. It has a spectacular neon sign that is lit on weekends, and is famous for the ultra-liberal (and sometimes conspiracy-minded) weekly sign proclamations from the theater owner. At Friday and Saturday evening shows, an organist plays standards in the main theater.
A large tidal lagoon that is surrounded by parkland and city neighborhoods. A popular 3.1-mile (5-km) walking and jogging path runs along its perimeter and gives you a warts-and-all picture of Oakland: nature, art, culture, and diversity; gleaming skyscrapers and historic rowhouses; but also occasional run-down sections and visible homeless encampments. The lake was the United States' first official wildlife refuge, designated in 1870. In the winter it's a good place for birdwatching, as birds migrating south from Canada and Alaska use it as a rest stop or a winter home. Look for grebes, pelicans, cormorants, hawks, and various types of ducks.
A startlingly good museum dedicated to the art, history, and culture of California. The building itself is an admirable piece of architecture, and the exhibits are almost uniformly excellent and engaging. Free for everyone on the first Sunday of each month. One thing to know is that the concrete construction of the building blocks cell signals, so be aware that you will likely lose contact for your stay in the museum.
With branches in neighborhoods throughout the city (check their website for specific branch locations and hours), the Oakland Public Library hosts numerous public events that make use of their facilities and vast resources.
A peaceful and picturesque oasis of color, near Grand Lake, often a site for weddings. Seven acres of roses, a few benches and quiet, nestled into a residential area. The garden may be reserved after Mother's Day through October 31. Reservations are booked on a first come first serve basis.