 The first from Aldgate are below ground, shared with the Circle and Hammersmith & City lines to Baker Street, where the line diverges, remaining in tunnel until Finchley Road.Metropolitan line trains then run express from Finchley Road to Wembley Park, with the Jubilee line serving the intermediate stations.At Wembley Park the Jubilee line diverges to the Stanmore branch at a grade-separated junction.