This list is subject to change at any point as I see fit.
1. Learn to fly a plane
2. Bungee Jump
3. Visit Italy
4. Drive cross country on the northern route
5. Learn to make sushi
6. Learn to throw on a potter's wheel
7. Complete a half marathon
8. Visit New Zealand
9. Visit Russia
10. Learn to tap dance
11. Ski in Switzerland
12. Learn to sign
13. Ride in a hot air balloon
14. See the northern lights
15. Sleep in an igloo hotel
16. Drink at an ice bar
17. Take a cruise
18. Visit the White House
19. Ride in a helicopter
20. Hike down the Grand Canyon
21. Raft down the Grand Canyon
22. Walk the Grand Canyon Skywalk
23. Play paintball
24. See the Cliffs of Moher
25. Learn to surf
26. Run with the bulls in Pamplona
27. Visit Athens
28. Walk the Great Wall of China
29. See the Taj Mahal
30. Visit Alaska
31. Visit Hawaii
32. See the Christ the Redeemer
33. Climb the Chichen Itza
34. Visit The Netherlands
35. Visit Sweden
36. Visit Norway
37. Visit Finland
38. Go to Mardi Gras in New Orleans
39. Go on safari in Africa
40. See one of the major tennis tournaments
41. Walk on fire
42. Make a quilt
43. Go to space with Virgin Galactic
44. Learn to shoot a gun
45. Ride a mechanical bull
46. See Mount Rushmore
47. Plant a vegetable garden for at least one season
48. Put solar panels on my house
49. Go whale watching
50. Go to the Olympics
51. Go to the Kentucky Derby
52. Go whitewater rafting
53. See a solar eclipse
54. Go to a nude beach
55. See the Grauman's Chinese Theatre
56. Something special #1
57. Something special #2
More to come??
