I'm living only one block away from Hamburgs redlight-district, St.Pauli and the Reeperbahn.
Since 1949 the gas-station is opened, since 1958 24/7 at 365, and it never was closed for only a minute...
Now, it has to close because the houses in the backyard have to be broken down and there will be no renewing of a permission...
Some facts: 50 employes, at weekends 10.000 customers/night
It's german, but maybe even without understanding the language you will get some impressions of it...
http://youtu.be/7uJNZdG1o3s