For Trip Advisor's list of top Omaha attractions, visit: https://www.tripadvisor.com/Attractions-g60885-Activities-oa0-Omaha_Nebraska.html
Here are some personal recommendations from Anna and Matt:
The RiverFront
900 Farnam Street, Omaha, NE 68102
Walk around The RiverFront - three connected parks filled with playgrounds and free events
Kiewit Luminarium
345 Riverfront Drive, Omaha, NE 68102
Stop by Kiewit Luminarium, a cool science center at The RiverFront for ages 6+
Bob Kerrey Pedestrian Bridge
705 Riverfront Drive, Omaha, NE 68102
Walk across this 3,000-foot pedestrian bridge over the Missouri River, straddling the border between Nebraska and Iowa
The Old Market
306 S 10th Street, Omaha, NE 68102
Check out the shops and restaurants in the Old Market, right next to The RiverFront downtown
Omaha's Henry Doorly Zoo and Aquarium
3701 South 10th Street, Omaha, NE 68107
Visit Omaha's Henry Doorly Zoo and Aquarium - the #1 zoo in the nation three years running!
Joslyn Art Museum
2200 Dodge Street, Omaha, NE 68102
The Joslyn—5,000 years of human creativity in art across three buildings. Free general admission to all, always.