Having already seen most, if not all, of the icons of London, there is just one more that I have got a couple of chances

Singapore, Malaysia & ASEAN Railway Travel Blog | RailTravel Station features pictures and information of railways and other means of travel with a special focus on Singapore, Malaysia and ASEAN. | Due to the fluidity of the COVID-19 pandemic situation, the travel information that you are reading may not be accurate at this point of time. Always double-check with the operator for the latest updates.
Having already seen most, if not all, of the icons of London, there is just one more that I have got a couple of chances
Megabus is a well-known coach operator in the United Kingdom bringing low cost intercity coach services to the masses. On top of cheap intercity bus
Getting around London is convenient whether by bus or train, though fares may be prohibitively expensive, depending on where you are reading this post from.