I am looking to add textures to other parts of this scene. However, every time I click texture it doesn't seem to change from the previous world texture, which I applied.
Here is a link to my blend file.
Also do you know how can I make the pillars dirty and realistic? Just like in this video: https://www.youtube.com/watch?v=vtO1s86HhRU (he changes it to dirty at 34 seconds)