Pacific Science Center ponds notice
This plaque in affixed to one of the arches, overlooking the ponds and fountains. It reads, "Coins thrown into pools become a part of the building endowment fund. Unauthorized removal of coins is a punishable offense." The buildings, arches, and ponds were designed by Minoru Yamasaki, architect of the World Trade Center (NYC) and the Rainier Building (SEA).