At the heart of Baku is the Unesco listed walled Old City. It's a wonderful place to explore whether day or night and get lost in its maze of little streets.
One of the high spots, along with the Maiden Tower, is the Palace of the Shirvanshahs (above), that dates back to the 15th Century and has been restored with some of those lovely petro-dollars.
Much of the walls remain intact complete with the gates:
At night it is quiet and in places rather badly lit. But that isn't a problem as Baku feels very safe, and its a pleasure to be able to look up and see stars.
The biggest danger was triping on a loose rock, missing a step or falling into a puddle!