Nelson's Column is the monument to Admiral Horatio Nelson in Trafalgar Square, a database landmark in Syndicate. The statue on top faces the Houses of Parliament.
The column is a database entry in the middle of Trafalgar Square. Its height makes it one of the taller climbable structures in this part of the map, and it later appears on the cover of the Last Descendants novel Locus.
10 Downing Street
10 Downing Street is the Prime Minister's home and office in Westminster. In 1868 Benjamin Disraeli lives here, and Jacob's work as his bodyguard in Sequence 7 starts outside the house.
Adelphi Theatre
The Adelphi Theatre is a London playhouse in the Jack the Ripper expansion. It ties into the Woody Shinnings bounty, where Inspector Abberline asks Evie to bring in the understudy who murdered the actor Richard Altman.
Admiralty
The Admiralty is a government office on Whitehall in Westminster, one of the period buildings you can climb and read about in the in-game database. No memory centres on it.
Alhambra Music Hall
The Alhambra Music Hall is Maxwell Roth's theatre on Leicester Square in the Strand, the Blighter leader's base and the stage for Jacob's final showdown with him. Several of Jacob's memories with Roth start here.