This week, three houses that couldn't be more different from each other. In historic Hancock Park, a madly over-decorated Spanish on North June Street that once belonged to actor Paul Muni, just down the street from a more austere Craftsman/Mission with a great pool.

Last week we had a look at properties in lower Marin County.

One of the best reasons for weekend open houses is the opportunity to see interesting architecture that someone else owns. Open this weekend, an early Cliff May house in Pacific Palisades we wrote about last year and now back on the market.

There's a lot of good Mid-Century architecture in the suburbs around San Francisco. We've left out the usual suspects— tract houses by Joseph Eichler— and here are three in Marin County from the period plus one completely new house worth seeing.

Whether you call them Spanish or Spanish Mediterranean, these houses are ubiquitous around Los Angeles, available in all price ranges and in varying condition.

Three of the open houses are in Noe Valley, prime hunting ground for young couples with jobs down the Peninsula— the neighborhood is well-served by private transport companies— plus a cottage in a little-known enclave and a downtown condo. We'll let you decide on the sublime/ridiculous part in the comments.

Los Angeles doesn't have a monopoly on bad taste, but it often seems like the city is the nexus of highly individual tastes and money.

Looking at real estate? Here are four condominiums (and one tenancy-in-common) to visit this weekend.

There's so much great residential design in Los Angeles, and like the city itself, always in flux. Styles get revived, get tired, get renovated, and then look dated again, and depending on the economy, get renovated again. Here are five open houses this Sunday worth visiting even if you're not in the market. in Santa Monica, a Mid-Century whose 90s renovation is showing its age and a Post-Modern condo that's still looking OK.

Want to spend the weekend touring the best of San Francisco's on-the-market real estate? We recommend these five open houses: two classic San Francisco condominiums on the edge of Nob Hill— from the days when it was the place to live— and three in SOMA, one a suite in the St. Regis that's a short sale plus a pair of lofts in vintage warehouse renovations.

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