Tech is located one block east of last week's post on Broadway. It was one of six comprehensive high schools in Oakland. In the past 10 years the Oakland school system moved big time into the charter school and small schools movements. As a result, Tech, which was established in the late 19th century, is now one of only three comprehensive high schools left in Oakland. The others have been broken into smaller units within their campuses. Has this improved high school educational outcomes? The jury remains out. This graceful building dates to 1914 and has been refurbished twice in the last 30 years. For more O photos, visit ABC Wednesday.