San Francisco
Old - California and Stockton
It's kinda the converging point between 4 major districts. At this intersection, you can see the FiDi, Union Square, Chinatown, and Nob Hill. You can also see the Bay, Bay Bridge, and North Beach off in the distance. And of course you've got the California St cable car line.
https://goo.gl/maps/quLVXiouzezg5JLZ7
https://imgur.com/gallery/Eh3HkJ9
New - Mission and Fremont
This is where Salesforce Tower, Park and Transit Center are located, along with nearby 181 Fremont, the entire office portion of which is leased by Facebook, and the controversial leaning Millennium Tower. This modern, glassy intersection is representative of the new techie way of SF, punctuated by Salesforce Tower, which many long time locals loathe.
https://goo.gl/maps/1dTb6QR2N46ikpGK6
Shot by me