Fairy house, Humboldt Park. (Patty Wetli / WTTW News)

To celebrate the 20th anniversary of its natural areas, the Chicago Park District, in partnership with The Nature Conservancy of Illinois, has installed 20 fairy houses in parks across the city. Here’s where to find them.

(Courtesy Friends of Big Marsh)

A grant from the state will help fund creation of the Chicago Park District’s first campground and a fully accessible 3-mile trail at Big Marsh, a natural area rising up from the waste of big steel on the city’s Southeast Side.