Sears Tower and Willis Tower in Chicago Illinois

Willis Tower Skydeck.

At 1,353 feet, the Skydeck is Chicago's highest observatory. When the weather cooperates, you can see 40 to 50 miles in all directions. That means you'll have a chance to see four different states at one time. Along with Illinois, you'll get spectacular views of Michigan, Indiana, and Wisconsin. It's also a great way to appreciate Chicago's exquisite architecture. Of course, there's nothing better than watching the sun set from the Skydeck. If you're interested, it's recommended to arrive 30 to 45 minutes prior to sundown. High-tech, high-powered telescopes make all the sights really come to life. For more information, visit www.theskydeck.com/

• Museum-quality exhibits. There's more to the Skydeck than just incredible outdoor views. Inside the Skydeck, you'll be able to explore Chicago's past and present via interactive, museum-quality exhibits. It's a history lesson you won't soon forget
• Multi-language interactive kiosks. Visitors from around the globe can take a hands-on tour of Chicago's landmarks on state-of-the-art computer terminals. And they're international-friendly. Currently, the six languages available are English, French, German, Japanese, Polish, and Spanish.
• Knee-High Chicago. Kids will get their chance to experience everything adults do, no matter their size. A kid-level display that extends all the way around the Skydeck features cut-out windows for easy viewing.