IT'S A FACT: The pinnacle of human ingenuity is undoubtedly THE SANDWICH. And at long last, it's time to celebrate humankind's greatest feat with DC Structures presents the Portland Mercury's Sandwich Week! But if you truly love sandwiches, you better hurry, because Sandwich Week ends this SUNDAY, JUNE 26! But it's so worth it, because Portlanders will be feasting on delectable, original sandwiches built by 30 of the city's most creative sandwich makers. and if.