Moveast features stunning photography of the eastern world that’s free to use. You’ll find moving images from Istanbul to Kathmandu.
searchable, large easy set-up, free but may require attributions, large high res gallery
Free Stock Photos: 74 Best Sites To Find Awesome Free Images – Design School
Stock Vault large library of images, objects, and textures
searchable, no attribution or membership, can change and do whatever you like, dutch and fun
Huge list of places to find free images (don't forget to give credit/attribution when required!
The photos are unmatched in quality and free– no attribution, no membership, and no stipulations on where you can use it. The photos are NOT searchable though.