Stroll beside the Thames River, enjoying street performers and panoramic city views culminating with the London Eye ride. London Eye open 11am-6pm weekdays.
See the official London residence of the Queen and witness the ceremonial Changing of the Guard held at 11am daily during summer. Palace tours open from 9:30am to 7pm in May.
Admire the iconic Gothic architecture and the famous clock tower, best seen in the afternoon light along the River Thames. Open area for walks, no entry cost.