The Sears Tower. Never believe the time posted. Sign says 30mins we left after 90mins still nowhere near the elevators. Getting our money back was a nightmare. They refused to return our money saying the time posted was 60mins(still less than the 90 we had already waited).We'll try the Hancock tower next visit.
The Sears Tower may offer you a spectacular, one of a kind view, but there is ALWAYS a long line and I thought it was a tad expensive, plus you're "encouraged" to move along in a timely manner!