Residents were cut off for almost 900 days, resulting in mass starvation, before the Red Army finally broke through in January, 1944.
Now it's one of the most modern cities in Europe, about to host its first major football tournament.
There are hints at the airport, with an entire wing of the arrivals hall given over to murals about each team (though the huge New Zealand photo is a bit dated, centred on Rory Fallon celebrating his winning goal in the World Cup playoff against Bahrain in 2009 in Wellington).
There is a sense of quiet expectation here, after so many disappointments for Russian football. They have qualified for three World Cups and five European Championships since 1996, but have reached the knockout stages only once.
This time has to be different, as President Vladimir Putin reminded the team and nation yesterday.
During his twice-yearly state of the nation address, where he takes selected questions from more than two million submitted across the country, he said the football side had "let the nation down" in the past and needed to perform this time. Putin, a St Petersburg native who first came to office in 2000, also confirmed he will take his seat in the stadium tomorrow, adding another layer of pressure for the home side.