This is something I found on weatherimagery.com


"A popular myth is that lightning cannot strike the same place twice, but nothing could be further from the truth. Lightning does, can and will strike the same exact place more than once. It doesn’t have a memory, and if an object has been struck once, it is no less likely to be struck a second time. If you don’t believe me, just ask some of the employees at Cape Canaveral in Florida. The shuttle launch pad gets hit time and time again, sometimes more than once in the same storm. How about the Empire State Building in New York city which gets struck by lightning about 25 times each year. Even Roy Sullivan was struck by lightning 7 times!"

So, I do believe that this is a myth.