City Spotting

Each sentence below conceals a world capital, spelled out in consecutive letters. How many can you spot?

Example: TV execs announced their September line up. (Berlin, Germany)

1. Captain Nemo scowled.
2. It was a doorman I lacked.
3. We gave the rosebud a pesticide.
4. Lt. Columbo got all mixed up.
5. With less violence, the film can be R-rated.
6. Here is the pheasant I agonised about shooting.
7. The tarp over our pumpkins has an opening in it.
8. The Red Cross will call on donors for money.
9. Don't yank a rabbit by its ears.
10. Population is swelling to new heights.
11. You must strip olives of their skin.
12. Peace activists boycott a war conference.
13. Would you consider Eric a pet owner?
14. Kicking stones can hurt your toes.
15. We returned three bushels in kind.

I particularly like no. 5. Very apt.