A really quick grabshot last night in rural North Dakota. A BNSF locomotive was on a siding waiting to continue his journey, and the few lights glowing jumped out of the pitch dark night. Temperature was well below zero, so I didn't even try to set up a tripod for this, instead relying on the 1D-X's high ISO cleanliness to do its thing!
1/40, f/5.6. 12800 ISO @ 490mm handheld