Chicago was the first city to have a nationally recognized large-scale city-wide temporary public art exhibit with its cows in 1999. Other cities soon followed suit, while every year Chicago has come up with a new variation on the theme. Here’s a list from what I remember since the cow year in 1999:
Cows on Parade (322 cows across the city)
The Ping Pong√Ü Festival, Table Tennis (300 tables across the city)
Suite Home Chicago (500 couches across the city)
Something with Music (musicians playing at certain times at certain points in the city)
Bobblehead baseball players (quantity?) (All-Star Game in Comisky Park)
Mickey Mouse (15, 6-feet tall, 700lb along State Street)
What’s on this year?