17 is

the entrance to the Rockefeller Plaza

and except for:

a typo in 4:'Niagra' and a miscount with 16:'The Louvre Museum', taking the first, second, third, etc.. letters from each answer, and starting over at 1 with 11:'Rijksmuseum', gives

GOOGLE CAMERA DRIVER

17 is

the entrance to the Rockefeller Plaza

and for a final answer:

Pick the $[(n-1)\pmod{10}+1]$-th letter from the $n$-th answer:

1. Grand Canyon
2. Hollywood
3. Hoover Dam
4. Niagara Falls
5. Zocalo
6. Statue of Liberty
7. Florence Cathedral
8. Victoria Harbour
9. Colliseum
10. Eiffel Tower
11. Rijksmuseum
12. Taj Mahal
13. Sydney Opera House
14. Notre Dame
15. Buckingham Palace
16. The Lovers Bridge
17. Rockefeller Plaza
18. Red Square

GOOGLE CAMERA DRIVER

17 is

the entrance to the Rockefeller Plaza

17 is

the entrance to the Rockefeller Plaza

and except for:

a typo in 4:'Niagra' and a miscount with 16:'The Louvre Museum', taking the first, second, third, etc.. letters from each answer, and starting over at 1 with 11:'Rijksmuseum', gives

GOOGLE CAMERA DRIVER