Start your final day with a hearty breakfast at Lou Mitchell's, a classic Chicago diner that's been serving breakfast since 1923. Enjoy a leisurely meal and soak in the old-school atmosphere. Then, ride up to Skydeck Chicago in the Willis Tower, reaching the 103rd-floor observatory. At 1,353 feet high, this is the highest observation deck in the United States, offering an absolutely jaw-dropping panorama. The thrill for many is stepping out onto The Ledge – a glass-floored balcony that extends 4.3 feet out from the building facade. It's like standing on air above the city. For your final evening, plan something relaxed and reflective. Perhaps take an early evening stroll along the Chicago Riverwalk once more, or sit in Millennium Park to watch the city lights come on. Consider a special farewell dinner with panoramic views to toast the trip. After dinner, walk over to Grant Park or Lake Michigan one last time. The city skyline from Adler Planetarium's lakeshore point is stunning at night if you want a final photo. Finally, return to your hotel to pack up and relax. Congrats, you've experienced Chicago's museums, parks, architecture, food, and some much-needed relaxation in between. Safe travels home the next day, with wonderful memories of the Windy City!