A child plays with snow at a snow-covered park in Frankfurt, Germany, Jan. 17, 2021. A snowfall hit Frankfurt on Sunday. (Photos: Xinhua)

A child sleds at a snow-covered park in Frankfurt, Germany, Jan. 17, 2021. A snowfall hit Frankfurt on Sunday.

A snowman is seen at a snow-covered park in Frankfurt, Germany, Jan. 17, 2021. A snowfall hit Frankfurt on Sunday.

People make a snowman at a snow-covered park in Frankfurt, Germany, Jan. 17, 2021. A snowfall hit Frankfurt on Sunday.

A child runs at a snow-covered park in Frankfurt, Germany, Jan. 17, 2021. A snowfall hit Frankfurt on Sunday.

A child plays with snow at a snow-covered park in Frankfurt, Germany, Jan. 17, 2021. A snowfall hit Frankfurt on Sunday.

A child makes a snowman at a snow-covered park in Frankfurt, Germany, Jan. 17, 2021. A snowfall hit Frankfurt on Sunday.