This pair of office buildings has a huge glass atrium in-between them. I left a camera running and taking one HDR shot every 30 seconds. This is the result. Not much to see during the night, despite the huge storm that night, but the sunrise through the glass panes is interesting.

The camera was powered by a 12,000 mA power bank, allowing it to run for just under 17 hours. I'll try it again with a 45,000 mA power bank.