San Francisco saw a number of new buildings this past decade — and most are linked to the region's tech boom. A 2013 photo of the city's skyline is void of Salesforce Tower's imposing figure.

ONE LUCKY photographer captured incredible images of San Francisco from a helicopter. By Lizzie Mulherin 16:05, Mon, Oct 26, 2015 | UPDATED: 16:30, Mon, Oct 26, 2015 ...