Where on Earth is it?
    How can you easily and precisely show others, where on Earth something is?

    You could tell them the Latitude and Longitude, the best elevation, eyeball direction, and tilt.
        Then -- they could open Google Earth, and laboriously move the mouse to roughly the spot.

About the method...

The global satellite images program Google Earth has a feature that allows users to both save and to share memorized exact references to specific views.

They may be saved by the program as dot-KM* files - in either of two formats:
    .KMZ       compressed/encrypted format
    .KML       plain-text format
That file may be imported and viewed by other users, by saving the file to the other user's computer.
(Here is a reference to the KML code:
Google - KML code documentation)

A live example...

Here are links to such a view-file, saved in the two formats.
You must first Save one of the files to your own computer, then "open" it there.
    MountBaker.kmz    compressed - 634 bytes
    MountBaker.kml    plain-text - 1.327 bytes

And in the box below, is the actual content of the plain-text file.
You could also copy this and paste it into a plaintext-file using NotePad (Windows) or SimpleText (Mac),
then Save-As with the name "MountBaker.kml".

Finally, make it work by a double-click on the saved file. (some similar method with a Mac).
That will open Google Earth (if it was not already) and go directly to the location and view.

text of file "MountBaker.kml":
<?xml version="1.0" encoding="UTF-8"?>
<kml xmlns="http://earth.google.com/kml/2.2">
     <Style id="sn_ylw-pushpin">
               <hotSpot x="20" y="2" xunits="pixels" yunits="pixels"/>
     <Style id="sh_ylw-pushpin0">
               <hotSpot x="20" y="2" xunits="pixels" yunits="pixels"/>
     <StyleMap id="msn_ylw-pushpin">
          <name>Mount Baker</name>
Here is what you'll get..........

the volcano near my home.

(this page furnished as a courtesy and service to my friends, by Marian.)