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.
Shinnings, Altman's understudy at the theatre, stabbed him to death. Abberline hands the job to Evie, and she brings Shinnings to justice.
The killing is modelled on the 1897 murder of the actor William Terriss outside the Adelphi by a fellow performer.
Evie finds Shinnings bragging to a Rook that, with every policeman busy on the Ripper case, he has been free to pick pockets, rob shops and squeeze prostitutes for protection money. Sneak up, grab him, put him in a carriage and drive him to Abberline, who takes him off your hands. The memory's own description calls the target Michael Stiff, a leftover name for the same man.
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.
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.
Bank of England
The Bank of England is the City of London's central bank and the target of Sequence 6, A Run on the Bank, where Jacob tracks a Templar robbing its branches. You return to its vault twice more: once for the stolen printing plates and once in The Last Maharaja.