London / Thames Tidal Barrier

[Bergwind]

What an impressive building ! You only get to know something like this if you love lighthouses !
Admiralty has listed all piers of the Tidal Barrier. Most numbers include two lights, the red ones show an X and the green ones an arrow.
Unfortunately this is not shown in my pics!
The two pics are by Alexander Trabas!

[mitko]

Been there, looks very futuristic for sure 

[world_little_p]

Go on Soon✊🏾