Burj Khalifa and Side of Dubai Skyline
The triangular shaped building in the forefront is Dusit Thani Hotel, the tallest building to the right is as you can guess Burj Khalifa, the tallest building in the world.
The second tallest building in the photo is The Address Boulevard Hotel, and the far left building complex is Dyaar's Central Park Towers in DIFC: Dubai International Financial City.
The picture is not mine but worth sharing.