Do you have some high resolution wallpapers?

I want to have one wallpaper that spans two screens. I have one 1080p monitor in landscape and one in portrait. So I need at least 3150x1920 (150 pixels for gap between monitors). More is better, as it allows for more freedom in cropping and positioning.

And well, the content should generally be something from which large chunks can be cut out without ruining the impression, like landscapes or cityscapes.