You would eventually end up in China.
peru
China
You would be in the Kyonggi Bay on the Yellow Sea. Kaesong, North Korea is near the border of South Korea.
The US.
You would be in Canada. :)
Bolivia
Asia
The current capital city of North Korea, Pyongyang, is north of Kaesong.
If you traveled due west from Cape Horn, your next landfall would be Antarctica. Similarly, if you traveled due east from Cape Horn, you would also reach Antarctica as your next landfall.
Asia
East
To travel from Flagstaff to Sacramento you will go North-West.