Grand Street, which was completely closed down last night from 6 to 8, bared more resemblance to an outdoor rock concert than an art opening. "I've never seen anything like this before" I kept hearing over and over again. The occasion? The opening of photographer Ryan McGinley's new show, "Everybody Knows This Is Nowhere," at Team Gallery. When I finally got a moment with the man of the hour, I asked him if there's an image he's always still searching for that's still out there, to which he responded, ''I  have always had an endless fascination with nudity! Always!"