Victoria station is a Westminster railway terminus south of Buckingham Palace. In Double Trouble, Jacob comes here after Catherine Gladstone, who is under guard, while gathering invitations to the Queen's ball.
Having lifted William Gladstone's invitation at his rally, Jacob tracks Catherine Gladstone to the station platforms, where guards watch her. You can sit on the bench behind her and pickpocket the card when she rests, or, if you miss it, follow her into the restroom, pose as the Mr James she is waiting for, and take it during the embrace. Jacob then steals her carriage. Full sync forbids killing policemen and damaging the Gladstones' carriage.
Driving a royal carriage for Duleep Singh, Evie collects the first politician at Belgrave Square and drops him here to meet his son before the ball.
Buckingham Palace
Buckingham Palace is Queen Victoria's London home in Westminster and the setting for the climax of Syndicate's story, the Queen's ball. It is also where the Queen hands out the Operation side memories, and it has a viewpoint.
The Thames
The Thames is the seventh borough of Syndicate's London: the river itself, its boats and its bridges. The Templar Edith Swinebourne controls it in 1868, and you win it the same way as the land boroughs, but there are no strongholds or factories to clear.
Buckingham Palace vault
The Buckingham Palace vault is a hidden crypt under the palace gardens that holds the Shroud of Eden, the Piece of Eden both the Assassins and Starrick are chasing in Syndicate. You finally reach it during A Night to Remember.
Palace of Westminster
The Palace of Westminster, home of Parliament, is in Westminster beside the Clock Tower. It has a viewpoint, Jacob assassinates the Earl of Cardigan here in Motion to Impeach, and the twins later stop a Templar bomb plot inside.