What's your favorite monument in Chicago? Here's what you told us

We asked readers what their favorite monument is in Chicago. Here's what you told us, lightly edited for clarity: "Haymarket Monument at Randolph and Desplaines streets. It honors the over-50-year struggle to establish the eight-hour day and free speech." — Mike Matejka, Normal "Statue of the Republic in Jackson Park."

A new study found that your favorite outdoor spaces may not be so far removed from pollution and toxic waste as you may have guessed.