L.A.'s
subway runs from Union Station in center city, and splits into two
different routes five stations outbound, beyond downtown.
The shorter Purple Line heads only another two
stops further out to Wilshire/Western. The much longer Red Line goes generally
northwest under the Hollywood Hills to end up at North Hollywood in the San
Fernando Valley. The system's total length is about fifteen miles,
all within the city limits of Los Angeles.
Of the fourteen heavy rail systems operating in the U.S.A., only the
L.A. Metro has its entire route structure underground. It's
efficient, but hardly fascinating.