Admiralty Arch
is really Admiralty Arch, London, UK
Real place, still recognisable
In game image coming soon

Real-world photo: Wikimedia Commons
In the game
The great arch between Trafalgar Square and The Mall appears in Westminster.
The real place
An Edwardian arch built in 1912 as a memorial to Queen Victoria.
Visiting
Walk through it from Trafalgar Square onto The Mall towards Buckingham Palace.