This little corner of the Slope (or South Slope, depending on if you think South Slope starts at 9th or 15th Streets), is seeing more and more action: restaurants and cafés are making their way down 6th Avenue. Now, a new one will join them. Slope’s Bistro Restaurant Bar and Grill is moving into number 522 (a spot that got a little graffiti cleanup in June), on the corner of 14th Street. GMAP