SAN FRANCISCO (AP) — More than 60 stories above the ground, construction workers climb makeshift stairs and cross narrow steel planks to put the finishing touches on Salesforce Tower, now San Francisco's tallest building….
SAN FRANCISCO (AP) — More than 60 stories above the ground, construction workers climb makeshift stairs and cross narrow steel planks to put the finishing touches on Salesforce Tower, now San Francisco's tallest building….