Russia celebrates the 75th anniversary of a 63-hour flight from Moscow to Vancouver, Washington, US, via the North Pole.
The main celebrations, including an air show, are being held near the native town of the legendary Soviet pilot Valery Chkalov in the Nizhni Novgorod region.
In June 1937, Soviet pilot Valery, Chkalov, Georgy Baidukov and Alexander Belyakob made the legendary flight on an Tupolev ANT-25 plane. It was a non-stop distance flight, which covered 8,811 kilometers.
The flight pioneered the polar air route from Europe to the American Pacific Coast.