Places I want to go to:

Patagonia (Argentina), Grand Canyon, Prince Edward Island, Nova Scotia, Nuuk (Greenland), Norway, Iceland, Malta, Faroe Islands, Shetland Islands, Channel Islands, Isle of Man, Isle of Mull, Isle of Skye, Brittany (France), Galicia (Spain), Gibraltar, Ostrov Beringa, Bohemia, Bavaria, The Black Forest, Transylvania (Romania), Tahiti, Great Wall of China, Alaska, Lapland (Finland), Victoria Falls (Zimbabwe), I want to take a boat from southern Chile to Antartica.. and there's others that I'll add as I recall them.

Best places I've been to:

Niagra Falls. Amazing. Take a walk behind the falls, and go on the Maid of the Mist boat, to be further wowed. Also down the river from the falls a bit, is a natural wirlpool that you could best see by taking the cable sky ride, I forget how many feet above it. Sorta scary.

Goes without saying, but London. Might sound like an obvious one, and not get the credit it deserves because of it's popularity being mistaken for overrateyness. But, it has 2 big, really nnice parks (Hyde Park and Regent's Park) , that are good for just relaxing (bring wine and a book or something), that everyone should see. And, what not everyone might know about -- you can go to this area called Little Venice (absolutely awesome) where you should take a narrowboat ride down Regent's canal (honestly, it feels so surreal.. like you're really somewhere else) to Camden Town market to sample food, drink, and look at vintage clothing.. midway down the canal you can even get off the boat to walk through a zoo. There's tons more to do, but I'll just mention one more necessary thing to do.. go to Greenwich to stand on the Prime Meridan of the World, where time is based. Very hilly and grassy area too.. very serene.

Conwy, Wales - awesome setting this town has. To add to the natural beauty, there's an 11th or 12th (I forget now) century castle, and the town is enclosed in a tall stone wall. The entire town's a fortress.

Oxford - really coo old buildings to look at.

Dublin - Don't leave without seeing the Dublin Castle and the old viking section, Dublinia. Those are the two biggest must sees probably.