I can only comment on the Golf Digest Top 100 outside of USA -
- Royal Dornoch, Scotland
- Carnoustie Championship Links, Scotland,
- St Andrews, Old Course, Scotland,
- Cruden Bay, Scotland,
- North Berwick, Scotland,
- Royal Troon, Scotland,
- Muirfield, Scotland
- Western Gales, Scotland,
- Balgownie, Scotland,
- Machrihanish, Scotland,
- Turnberry, Scotland,
- Wentworth West Course, England,
- Royal St George's Sandwich, England
- Ganton, England,
- Rye, England
All the Scottish course are links and as such are beyond platitudes; golf was invented for such places - each one unique and each one a destination everyone should experience regardless of competency. Royal St George's where Ben Curtis won The Open is magical, Wentworth is millionaires golf, inland of course and different yet unmissable and not just for the history attached. Ganton is links golf inland if that makes sense; Ryder Cup has been there so that'll tell you all you need to know, Rye is quite short and quirky but again is link-sy and the greens are minute so hard to hit and hold.
Go find them and if you visit Scotland then Gullane #1, Gleneagles Kings' Course, Rosemount, Dunbar (20th oldest course in the UK!), Panmure, Montrose Medal (3rd oldest course in UK), Monifieth, Murcar Links and Old Moray shouldn't be missed either. All are great course, fair yet testing and all are sites of historical interest to boot! The home of golf is Scotland remember! Good luck!