Three of the venues were constructed for the 1940 Summer Olympics, but were postponed in the wake of World War II.
With an annual average temperature of 5.9 °C, Helsinki is the coldest city to host the Summer Olympics.
[13] This was done in preparation for the 1940 Summer Olympics that were moved from Tokyo after the breakout of World War II.
[13] Construction for the Swimming Stadium began in 1939, but was interrupted due to World War II.
[14] The Tennis Palace was renovated, purchased by the city of Helsinki in 1957, and converted into an art museum in 1993.