On the Get Lat Lon website, you are presented with a Google Map of the world, and a search field above the map. I typed in my street address, city and state - shown below:
After I clicked on the "Zoom to place" button, the site went immediately (I mean fast!) to show my house lot on my street:
The cross-hairs in the center of the map are on my house lot (just about the Genealogy Cave actually), and the latitude and longitude numbers for the cross-hairs say
Latitude, Longitude: 32.620434, -117.044326
Yep, that's right! How cool is that?
Dick's post said that we could input the latitude and longitude for a place in the search field, so I picked out a favorite place, and input 40.77040386721811, -111.89426600933075:
And clicked on "Zoom to place" button and saw:
Yep - that's right! The Family History Library in Salt Lake City! [Actually, it's the side of the street outside the library. The Library entrance is at 40.770418086484604, -111.8942928314209 if the Google Map is correct.]
Thank you, Dick Eastman, for the cool technical tip!