The photos in each set are geo-tagged.

Enter multiple terms – e.g. coke pepsi – and see how many times it was mentioned on Twitter.

“After years of anticipation, the city’s plan to turn Rincon Hill into a Vancouver-style neighborhood of thin, supertall condo towers is coming to fruition. Thus far at One Rincon Hill, 40 units have closed escrow and 17 residents have moved in.”