Alexei Druzhinin, Sputnik, Kremlin Pool Photo via AP)
- Putin's main residences have been connected to a secret railway line, Proekt reported.
- Proekt identified evidence of hidden stations near his homes in Valdai, Moscow, and Sochi.
- Putin has been regularly using an armored train to travel between his homes, according to reports.
Russian President Vladimir Putin's main residences have been connected to a secret railway line, allowing him to travel inconspicuously and safely by armored train, according to the investigative Russian outlet Proekt.