Longest continuous subway (underground)
- Who
- Greater Moscow Metro
- What
- 37.9 kilometre(s)
- Where
- Russian Federation (Moscow,)
- When
- 1990
The Moscow metro Kaluzhskaya underground railway line from Medvedkovo to Bittsevsky Park is 37.9 km. (23.8 miles) long and was completed in early 1990.