Yes, Russia has a high-speed rail service known as the Sapsan, which connects Moscow and St. Petersburg. These Siemens-built trains reach speeds of up to 250 km/h (155 mph), completing the journey in about 3 hours and 45 minutes. It is a premium service with various classes of comfort and is widely considered the most efficient way to travel between the two cities. In addition to the Sapsan, Russia is currently investing billions of rubles into its first dedicated "High-Speed Rail" (HSR-1) project, which broke ground recently and aims to reach speeds of up to 400 km/h by 2026-2027. This new line is designed to cut the Moscow-St. Petersburg trip down to just 2 hours and 15 minutes. While the older "Allegro" train to Helsinki is no longer operational due to geopolitical borders, the internal high-speed network remains a core part of Russian infrastructure development.