If you haven’t seen Google Earth yet, go ahead and download and install it here:

http://earth.google.com/

After you are done, put these coordinates in the search box (on top left):

1-
50° 0’38.20″N 110° 6’48.32″W

This one is really cool but it looks like it’s random.

2-
19°56’58.08″S 69°38’2.25″W
(Zoom in a little bit)

Now, this one is not random, it was made by someone, some say Mayans but remember, they couldn’t fly so I think making something like this that only someone in the air can see would be their last thought… Correct me if I’m wrong, I can’t find anything about this on the internet.
Honestly, it looks like an alien to me

3-
45° 7’25.87″N 123° 6’48.97″W
(Zoom in a little bit)

The Firefox logo!

4-
38°31’43.91″N 76°34’0.80″W
(Zoom back and forth a little)

5-
31°39’40.82″N 106°35’26.02″W

6-
37°33’49.94″N 116°51’3.91″W

7-
45°42’12.73″N 21°18’7.53″E