At 40 degrees west and 70 degrees north, you would find the country of Iceland.
Spain
That point is located roughly 690 miles from the north pole, in north-central Greenland.
Greenland is located at approximately 70 degrees north latitude and 40 degrees west longitude.
The US state of Pennsylvania is located at approximately 40 degrees north latitude and 80 degrees west longitude. It measures how far north or south a location is from the equator, while longitude measures how far east or west it's from the Prime Meridian.
The coordinates 40 degrees north and 8 degrees west point to Portugal, located in southwestern Europe on the Iberian Peninsula.
That would be Greenland. If you transpose the numbers, making it 74 degrees west and 40 degrees north, you would be very near New York City.
North America
That point is about 460 miles northeast of Jakobshavn, in the interior of Greenland.
The coordinates 40 degrees north and 100 degrees west are located in the United States, specifically in the state of Nebraska. This area is primarily rural and characterized by agricultural land. It's situated in the central part of the country, not far from the city of North Platte.
None. That point is out in the Atlantic Ocean, about 875 miles off the northwest coast of South America.
That point is in central Turkey, roughly 50 miles west of Ankara.