If you ever fly into Marsh Harbour, Bahamas, look closely before you land and you'll see SEVERAL wrecks of less fortunate aircraft lying in the mangroves below...scary!
It's very common to see wrecked drug planes all over the Bahamas, from the 80's when many smaller airstrips were used by smugglers who ditched their planes if they thought they were spotted (they'd come back later to pick up the cargo...worth a lot more than the plane!!). I've seen a couple of these (on Cat Island) with Colombian HK- registrations, lying around in swamps, beaches, or underwater. Interesting.
Also, Washington DC National is a beautiful approach if you come in from the North, you get a beautiful view of the monuments.
Male, Maldives is also great, it feels like you're about to land on a coral reef. (you are!!)
Rio is a great view, especially if you come in from the South.