Places safe for toddler and newborn

Erin

I have a 4 week old and a 2 year old. It is a very cold winter where I live, and my toddler is bored/destructive in the house all day. I want to take her somewhere but have to take a newborn with us, and I don’t want the baby to get sick. Every time we go to a library or kids play place, my toddler gets sick (why do parents take their sick kids out? Makes me want to scream). Where are fun places to go that are low risk for a newborn to get sick? I thought maybe an animal shelter, but don’t want her to get bit. Need ideas please!