Many visitors recommend visiting the Skydeck just before sunset to experience both daylight and nighttime views of the city. Additionally, checking the live camera feed for weather conditions, particularly fog, is advised for ensuring optimal visibility.
Yes, tickets can be purchased online, which is recommended by several reviewers as it saves time and may even allow for a more flexible entry time in case you arrive earlier or later than your scheduled slot.
While the Willis Tower's Skydeck is high up, many visitors with a fear of heights have reported still enjoying their visit. The enclosed observation areas and the option to stay back from the glass balconies can provide a sense of security for apprehensive guests.