Shooting directly into the sun with a reduced exposure and aperture is a good way to simulate the ‘day for night’ effect often seen in movies. This photo has had the sun replaced with an image of the moon taken on a separate occasion.
This is the original shot after crushing the black levels a bit and setting the white balance at around 3900K. The exposure was f16, 1/8000, ISO 100.
This is a shot of the same scene straight out of the camera with no effects and an exposure somewhere toward the middle of the range (f11, 1/1000, ISO 100).