What building will take nearly 150 years to complete?

Related questions

1. How long did it take to clean up 911 debris?
2. What is the shortest building in the world?
3. Why are there 5 sides to the Pentagon?
4. How many rooms does a 5 star hotel have?
5. Was the Pentagon rebuilt after 9 11?
6. What's the smallest house in the world?
7. Is Marriott a 5 star hotel?
8. What is the world's tallest building 2018?
9. Why is it called the Pentagon?
10. Is Marriott buying Hyatt?

Tags

1. #spain
2. #barcelona
3. #sagrada
4. #which
5. #building
6. #famous
7. #nearly
8. #death
9. #early
10. #completed
11. #began
12. #complete
13. #centennial
14. #years
15. #antoni
16. #expected
17. #construction
18. #design
19. #learn