8. London, United Kingdom
Average Cost Per Week: $1,072
We are continuing our list of most expensive cities to spend a week in Europe with London that is one of the most recognizable cities in the entire world, let alone Europe. When you make it to London, you can really expect to be treated like royalty, given the amount of money you need to spend a week over there. There are just so many things to see in London that a visit for a week is not enough to cover the entire city. Big Ben, Tower of London, Buckingham Palace, The British Museum, St Paul’s Cathedral, Trafalgar Square and the list just keeps going on.