Here is a list of some things to build in your minecraft world.

If you build any of them attach a picture in the comments please.

1. A massive treehouse (with walkways)
2. Sports fields e.g soccer, hockey, touch football, rugby, cricket, american football.
3. Olympic swimming pool (and water polo)
4. Zoo
5. Jail
6. Maze
7. A replica of your own house
8. a flag of a country
9. Library
10. farm (with a barn, animal pens, wheat and carrot farms all together with a fence around)
11. A city in the nether
12. Lighthouse
13. Train Station (with big trains)
14. Archery range
15. Golf coarse
16. Putt Putt golf coarse
17. Ice rink
18. Abandoned village
19. Water slide
20. Rollar coaster
21. Amusment park
22. Zen garden
23. Hotel
24. Dog and cat boarding kennels (for when people go away on holiday)
25. Animal shelter
26. Science labratory
27. Santa's workshop
28. Hospital
29. Fire station
30. Police station
31. Shopping mall
32. School
33. Tennis Courts
34. Public swimming pool
35. Theature
36. Restaurants
37. Market stalls
38. Art gallery
39. Bank
40. Bus stops
41. Church
42. Helipad
43. Your skin
44.Board games
45.Castle
46.Underground base
47.Graveyard
48. Apartment block
49. Orchard
50. Pirate ship

This is my list of 50 things to build in Minecraft
feel free to leave suggestions in the comments