WOW! This image related to skyscrapers is absolutely outstanding as homescreen phone. Drew Hays is the talented photographer behind this architecture photography and shared from his courtesy under CC0 license. In image was captured the Willis Tower from Chicago. Well, if you like it, download the photo optimized for apply in your phones or desktop backgrounds.
Widescreen Desktop / Macbook (Retina): 2880x1800 (fits on: 2560x1600, 1920x1200, 1440x900)
High Definition HD 1080p: 1920x1080 (fits on: 1600x900, 1366x768, 1280x720)
Samsung Galaxy Tab & iPad: 2048x2048 (compatible with many tablets)
HTC, Samsung Galaxy & iPhone: 1080x1920 (compatible with many phones)