Type in the address, city and state and click "mapblast".
To get more specific coordinates, include the zip code.
Once you click mapit you will get a list of possible matches. Choose the address and
click "Use this address".
You will get a screen with a map and the following box:
The bottom light blueish-green line has the Latitude and Longitude coordinates that will help you narrow the search for the landmark you are looking for.
These coordinates will get you in the general area but you will still have to hunt around a bit. You can zoom in very close but you will need to find a large landmark such as a highway to point you in the right direction.
Note: The last time i checked, these pictures were updated in 1993 so if what you are looking for is newer than that, you may not find it.