A boy plays at a fountain in Frankfurt, Germany, on July 8, 2023. (Xinhua/Zhang Fan)
People rest on the lawn in Frankfurt, Germany, on July 8, 2023. (Xinhua/Zhang Fan)
A girl plays at a fountain in Frankfurt, Germany, on July 8, 2023. (Xinhua/Zhang Fan)
People ride bicycles in Frankfurt, Germany, on July 8, 2023. (Xinhua/Zhang Fan)
People cool themselves at a fountain in Frankfurt, Germany, on July 8, 2023. (Xinhua/Zhang Fan)