Speaker by Various Artists

Oh - these are fabulous - thank you

Wow- what pics! What places!
Thankyou.

Just stunning.
Thanks!

Lovely! It's a shame that photographs can't capture scent; though I haven't visit St Petersburg, one thing I've noticed around the world is that every metro / underground railway has its own unique smell.

Of course you won't get this level of grandiose public infrastructure with light rail...
:- )

The Pyongyang metro in North Korea is similarly spectacular
https://www.theguardian.com/cities/gallery/2018/jul/27/pyongyangs-stunning-subway-stations-in-pictures

More so I think actually.

Amazing - both the opportunity in timing to get those unobstructed shots and the irony of the opulence, craft and creative expression contained in the subject matter.