The four corners are round. What are the signs besides cars?

The four corners are round. In addition to cars, there are signs of the International Olympic Committee (IOC), Japan Post and Japan Railway Corporation (JR).

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International Olympic Committee (IOC) emblem: This emblem is connected by five rings, representing the unity of five continents, in which the four corners of each ring are round.

Logo of Japan Post: This logo is a red circle with a blue cross inside, and all four corners are round.

Logo of Japan Railway Corporation (JR): This logo is a blue circle with a white word "JR" in it, and all four corners are round.