Photographing at night is better because there is less guests visiting and walking around and potentially in front of your camera. It is also a great idea to use an extremely wide angle lens to be able to get really close to your subject.
For this shot I used my D700 with a Nikon 14-24 f/2.8 @ 14 mm to get really close and avoid any humans in the frame. It's also important to point out that when using such lens you have to be careful because they produce a lot of distortion. In this case, I like the effect created by the lens.