![](http://www.ecns.cn/hd/2022/04/11/b4b8d7fe69ed4d13a9db124f461018ab.jpg)
A soapbox car races down a San Francisco hill, San Francisco, U.S., April 10, 2022. With no engines or motors, the gravity-powered cars rolled down the hill on their own. (Photo: China News Service/Liu Guanguan)
The first Artists' Soapbox Derby was held by the San Francisco Museum of Art Soapbox Derby in 1975
![](http://www.ecns.cn/hd/2022/04/11/9115baa9a21a443da654dddab3f1ca60.jpg)
A soapbox car races down a San Francisco hill, San Francisco, U.S., April 10, 2022. With no engines or motors, the gravity-powered cars rolled down the hill on their own. (Photo: China News Service/Liu Guanguan)