https://www.mercurynews.com/2022/03/13/bay-area-landmark-gets-major-upgrade-and-a-sleek-new-look/

In one of the Bay Area’s more unusual makeovers, a $2 million renovation project at the Mount Umunhum radar tower, an 85-foot-tall landmark in the hills south of San Jose, is complete.

The five-story mountaintop building – visible from across the South Bay for its distinctive cube shape on the ridgeline – was once the centerpiece of Almaden Air Force Station, a military base that scanned the skies for Russian bombers from 1958 until it closed in 1980.