Hannover, Germany, the town where I grew up.
The yearly Technology Exhibition is the most
significant event worldwide.
Hannover Timelapse:
http://www.hannover.de/en/Welcome-to-Hannover/Hannover-Timelapse-New-Film
http://www.visit-hannover.com/en/Trade-Fairs-Conventions/Upcoming-Trade-Fairs-Hannover/Hannover-Messe-2015