The Tepees North Pullout is a roadside viewpoint 14 miles from the park's north entrance. It looks over a cluster of conical badland hills striped in gray-blue, purple, green and rust. I'd make it a short stop for a close look at the Painted Desert without a trail walk; look past the nearest cones, too, to take in how the formations rise from the open plain.
For a photo, use a wider frame with part of the road or open plain so the cones sit in their landscape. A tight crop loses how sharply they rise from the flat badlands.