Numbers (Answer)

Was researching the location of certain structures that I saw on my Science Channel a few days ago.  While looking around the immediate area, I saw a number of round towers along the waterfront and along side were a few other structures that I had to find out about.  At least one of them is still being used for its purpose for over 200 years.  There are no blue dots and street views are very iffy.  If you happen to click on the city beach, there are two 360 views, one of which will show one of these number structures and one of the towers.  Satellite views give the best result.  It's purpose was originally military in nature.  The nearby towers were defensive and there are quite a few of them.

Here is a Google map photo image since no blue dots or street views to get closeup images.

Satellite View.

After so many unlucky fails, this time I just succeeded finding this in no time. The wheel of fortune turns round and round.
This is drastically photoshopped 😎

CLUE

SPOILER: Click to show

{Spoiler}
This was a structure that is nearby the numbers mystery puzzle that was on the Science Channel program.

Thanks for the clue

ANSWER

SPOILER: Click to show

{Spoiler}
Martello Towers and Ranges
Hythe England UK
51°03'39.8"N 1°03'49.9"E

What I watched on the Science Channel was the nearby Hythe Sound Mirror