Area 51 Easter Egg on Google Maps
The American military base in Nevada called “Area 51” is often associated with various conspiracy theories and aliens.
In this regard, an Easter egg is hidden in Google. If you point the little man responsible for the street view mode to the territory of the base, the icon of a flying saucer will appear.
An example is shown in the screenshot. You can verify this by clicking on the link to Google Maps or by entering the coordinates yourself: