This year and I signed a long-term travel photography contract with Cape Town Tourism, the official tourism board in my favorite city in Africa. Meanwhile, I've sold tens of thousands of image licenses through multiple agencies over the years, host local workshops and photowalks in the cities I visit, and I'm constantly working on partnership and sponsorship deals behind-the-scenes. Even my travel photography website works hard for me, as I often get offers and inquiries directly from visitors.
Make use of people to give your images life and scale. If the facade of a particular building appeals to you, the picture may be that much better if you show people walking in front of it. They will give it scale and also let viewers know what sorts of people live there, how they dress, and the like. An outdoor café may be more interesting crowded with people than empty.