This one was from @PaulWoods who shared the Map Developers site.  On this site, you can add your address to the search field and then it draws a circle around it according to your preferred distance.  Now why would you want to do that? It’s a great way to see what’s in your local area.  From cafes (okay, you may not go to these now but you can support buying a coffee) and other areas of interest such as parks.  I used it to see the distance to various landmarks in my local area and to search for bike tracks.