California Screaming is amazing at night. It feels like your going faster for some reason. Big Thunder is really cool at night. Specially when the fireworks are going off.
Also Pirates at night is really amazing. Because your going in when its dark, the whole ride is like inside but the sky effects are made to look like its at night time, and when you get off the ride and leave the building its dark. So it kind of makes the pirate ride feel more realistic.
The Haunted mansion is also very cool at night. You think of scary movies and all the ghostly activities happen when the lights go down

. So it gives the mansion a creepier edge.