Number 521 bus route & timetable
- London Bridge Station
- Monument Station
- Cannon Street Station
- New Change / Cannon Street
- St Paul's Station
- City Thameslink Station
- Holborn Circus
- Holborn Circus / Fetter Lane
- Chancery Lane Station
- Brownlow Street
- Holborn Station
- Kingsway / Holborn Station
- Aldwych / Drury Lane
- Waterloo Bridge / South Bank
- Waterloo Station / Mepham Street
- Waterloo Station / Tenison Way
- Waterloo Bridge / South Bank
- Holborn Station
- Procter Street
- Brownlow Street
- Chancery Lane Station
- Holborn Circus / Fetter Lane
- Holborn Circus
- City Thameslink Station
- King Edward Street
- New Change / Cannon Street
- Mansion House Station
- Cannon Street Station
- Monument Station
- London Bridge Station