Through the parks and schoolyards of Taiwan, a dwindling herd of vintage elephant slides trudges alongside ball courts and buildings. Popular in the mid-20th century, the slides no longer adhere to local safety regulations, and as parks are redeveloped, they have been gradually disappearing. In an ongoing series, Pi Cheng Hsiu (previously) captures the herd’s diverse expressions and ornamentation, some retaining their original gray appearance, and others the recipients of vibrant makeovers.

Pi has also generated an interactive map featuring all of the locations documented so far, and you can explore more on Instagram.