90 degrees west longitude runs near blank and blank

Answer 1

http://www.sir-ray.com/Map%20Re31.gif

Answer 2

It runs exactly near the North and South Pole.

Take a look at other locations.
https://en.wikipedia.org/wiki/90th_meridian_west

Answer 3

well, in Gloucester MA we are about 70 west of Greenwich England so go a bit further west, like Chicago is about 87 W, St Louis MO is 90 ! then look north or south of there
Look at a map or globe or maritime/air chart