Took advantage of free day at the Shedd Aquarium. 

Fun fact from Wiki: 

In 1930, 20 railroad tank cars made eight round trips between Key West and Chicago to transport 1,000,000 US gallons (3,800,000 l) of seawater for the Shedd's saltwater exhibits. In 1933, Chicago hosted its second world's fair, the Century of Progress. The Aquarium was located immediately north of the fairgrounds, and the museum gained exposure to a large international crowd.

Anyways, shot some fish, and avoided large crowds of children, all for free.

Images shot on a Fuji X100s