Travelzoo offers a 1-Day Go Chicago Card for $74.99. That's tied with our mention from two weeks ago as the lowest price we could find for this pass by $5, although we saw it for $5 less in March. This pass allows access to 25 Chicago attractions including the Shedd Aquarium, LEGOLAND Discovery Center, the Field Museum, Art Institute of Chicago, and more. Book this deal by June 2. Other notable deals:

2-Day Go Chicago Card for $109.99

3-Day Go Chicago Card for $127.49

5-Day Go Chicago Card for $152.99

Of note, children's passes are also available from $55.99