Orient Express
From Memory Alpha, the free Star Trek reference.
An ancient Earth means of transportation, the Orient Express, a steam-propelled locomotive train, connected Paris to Istanbul from the late 19th century to the 1970s.
In later centuries, it was still held to be a romantic and mysterious method of transportation, since one never knows who one will meet on the Orient Express. Sigmund Freud met Gertrude Stein on the Orient Express, and had dinner with her every evening.
Beverly Crusher was particularly fond of this train, and has a holodeck recreation of it. This program merged with an active program occupied by Lieutenant Commander Data and Captain Jean-Luc Picard, almost killing them both, due to a malfunction in the holodeck database retrieval program. (TNG: "Emergence")
