1. Visit the Willis Tower: This iconic skyscraper offers stunning views of the city from its Skydeck, located 1,353 feet above ground level.
2. Take a boat tour of the Chicago River: This is a great way to see the city's architecture from a unique perspective.
3. Visit the Field Museum: This world-renowned museum houses an extensive collection of artifacts from around the globe, including dinosaurs, ancient Egyptian artifacts, and more.
4. See a show at the Second City: This legendary comedy club has launched the careers of many famous comedians, including Tina Fey, Amy Poehler, and Steve Carell.
5. Explore Millennium Park: This popular park features public art installations, gardens, and a variety of events throughout the year.
6. Enjoy the Navy Pier: This bustling pier on the shores of Lake Michigan offers a variety of attractions, including rides, games, shops, and restaurants.
7. Visit the Art Institute of Chicago: This world-class art museum houses a vast collection of paintings, sculptures, and other works of art from around the world.
8. Take a walk or bike ride along the lakefront: Chicago's lakefront offers stunning views of the city skyline and is a great place to relax and enjoy the outdoors.
9. Visit the Shedd Aquarium: This aquarium is home to a variety of marine life, including fish, reptiles, and amphibians from around the world.
10. Explore Chinatown: Chicago is home to one of the largest Chinatowns in the United States, offering a variety of shops, restaurants, and temples to explore.