The London Eye has become an iconic symbol of Britain since opening in 2000. It is an engineering achievement that allows passengers in its observation capsules to admire views up to 40 miles in all directions. Popular tourist destinations in the UK include Big Ben, the Tower of London, Westminster Abbey, and Stonehenge. Britain has a variety of festivities including Ascot horse races where attendees wear fancy hats, Christmas which is celebrated on December 25th, and Halloween on October 31st.