Some test we were running at work today involved the ZIP code 12345. So i threw it into Google Maps and it gave me Schenectady, NY:
"I wonder what's under the pin," i said to myself. I clicked the zoom button once and saw:
"... Berlin? I wonder what that is." I clicked on that and...
So, yeah, it's a magical place. I suspect that Google Maps is looking through a window into an alternate dimension where the Nazis won and own Rotterdam:
Further digging shows the actual Berlin address's Street View as an empty storefront for lease, and the gym's domain name is now for sale; the Schenectady location shows a tree. It will have to remain a mystery.