Moscow's Huge Subway Expansion Is Actually Ahead of Schedule

With 200 stations, 207 miles of track and just 20 hours to cover them all, Moscow’s Metro Marathon could stretch even the most die-hard transit lover’s tolerance to its limits.

The upcoming event, which sees participants visit every Moscow metro station within a single day, is set to take place May 12 and will be the first of its kind. It’s timed to coincide with the network’s 81st birthday—but if that sounds like an oddly random anniversary to commemorate with a special event, rest assured that there is another more pressing reason to hold the marathon now. The first ever Metro Marathon will also be Moscow’s last, because next year, visiting all of Moscow’s subway stations in a single day will most likely be impossible.