Fluorescent pink seesaws were fitted on a frontier fence along the US-Mexico border to symbolically bridge the divide and encourage both children and adults to play.
The seesaws were installed by Ronald Rael, a professor of architecture at the University of California, Berkeley, with the support of Colectivo Chopeke in Ciudad Juarez.
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It aimed to connect both sides "as a recognition of the actions that happen in one side and have a direct impact on the other," Prof Rael wrote on his Instagram page.
Commenters loved the installation, which they called a moving concept.
"I am overwhelmed and moved by this! After so many years in concept, this is an incredible and meaningful actualization. Congrats to everyone involved in making this happen!" one person wrote.
"Sweet and sad both at the same time..at least for a little while, they are happy," another said.
The border between the United States and Mexico has become a political landmark, with US President Donald Trump continually trying to secure funding for a wall to separate the countries.
Trump has often promised to end illegal immigration from Mexico and his presidency has seen a stepping up of efforts to prevent unauthorised border crossing.