The Willis' new attraction, the Ledge, offers a straight-down view from the glass booth on Floor 103. Check it out between 10 a.m.-8 p.m. October-March; 9 a.m.-10 p.m. April-September. Cost: $15.95.
Taiwan's 1,667-foot-tall Taipei 101, completed in October of 2003, may have pushed the tower formerly known as Sears to number three on the "world's tallest" list, but at 1,454 feet high, it's still the tallest building in the Western Hemisphere--and it's so big it even has its own zip code. From the 103rd-floor Skydeck, you can see Indiana, Michigan and Wisconsin, as well as Chicago area landmarks. "The Sights and Soul of Chicago" is an interactive display celebrating the city's history in photos, graphics, video and murals. InfoVision kiosks provide online information in six languages and kid-level displays extend around the Skydeck. Visit in the evening for beautiful sunset views.
The tower entrance is on Jackson Boulevard between Wacker Drive and Franklin Street.