Standing on High Holborn is this rather interesting old building - Staple Inn. It's a timber-framed building and built in 1585 and stands on High Holborn in the City of London. Although it survived the Great Fire of London (1666), it was damaged in WW2 but restored. Staple Inn is the last surviving Inn of Chancery. I am no law expert, but from what I understand, Chancery Inns were used by people who worked in the "field" of law.
Get there: Chancery Lane LU