Complex sentence: The route therefore did not depart from Bangkok's main railway station, Hua Lamphong Station, but had its own terminal station in Thonburi, Thonburi Station, the Station building was designed by the German architect Karl Siegfried Döhring in the style of the Brick Expressionism.
Split into simpler sentences: The route therefore did not depart from Bangkok's main railway station, Hua Lamphong Station, but had its own terminal station in Thonburi, Thonburi Station. The station building was designed by the German architect Karl Siegfried Döhring in the style of the Brick Expressionism.