I often use Depositphotos to search for photos. There is a huge selection of urban background images there. I can recommend checking out their website. I've been using Depositphotos for quite a while and the quality is always top notch. There are both paid and free options. I usually choose the paid ones to get high-resolution images without watermarks. The prices are quite reasonable, especially if you take packages or subscription. Depositphotos regularly offers discounts and promotions. I would recommend subscribing to their newsletter to stay up to date and get information about current offers. They also usually have temporary sales with additional discounts.