There's absolutely nothing up here, but you made it this far north, so you might as well congratulate yourself! Chances of actually seeing the "midnight sun" are slim. It's usually too cloudy or foggy to really see anything. There are some tacky souvenir shops, a post office, wine bar, fancy coffee shop, and ice cream stand inside the tourist centre, plus a huge monument out back right at the edge. Nordkapp isn't really the farthest north you can go in Europe, but is the farthest north you can reach by car. It's another 1.5km on foot or sled to Knivskjellodden. But if you only get as far as Nordkapp, take a pic and give yourself a pat on the back.