Mariano Park

A five-star high-rise hotel on the Magnificent Mile with a 44-foot heated indoor pool and lake views.

An early-childhood arts and play studio on the sixth level of the 900 N Michigan shops, offering music, movement and art classes for ages 0 to 6, with drop-in options.

Bold, geometric equipment with a big twisted climbing net and monkey bars for older kids, and its own area for toddlers.

The observation deck on the 94th floor of the former John Hancock Center, now branded 360 Chicago, with a fully accessible entrance and family restrooms.

A two-level doll store and cafe inside Water Tower Place where kids can shop, get a doll's hair styled, and eat lunch alongside their doll at a reserved table.

Park with a playground.