Hoi Chummers,
Found a nifty website by accident while searching for a research facility for my dissonant Snuff technomancer/10 foot tall chicken biodrone combo to run around in survival-horror style for the team's next run, and I stumbled across a nice website that functions extremely well once you get past the clunkiness of navigating the pictures.
http://www.archdaily.com
The quality varies from project to project, but they typically have exterior shots, models, and blueprints/plans of the buildings that they feature. Some of them are kind of out there tech/style wise, which may fit with your vision of Seattle/Denver/LA/X. Hope someone finds this helpful.