The Field Museum opens Saturday to the general public. Members got a sneak peek early. "As we were driving into the city and seeing the skyline again, it was like, it's been too long since we've done this," said Emy Krauspe of Geneva, who is a Field Museum member. "And now we have a reason to do it." The Field Museum will operate at 25 percent capacity, and tickets are recommended before you arrive. Tickets will also be sold at the door. Alex and Brom Johnson, brothers from Crown Point, also made the trip to Chicago with their father to visit the iconic attraction.