13. BUCKINGHAM PALACE – LONDON
Source: theclever.com, idesignarch.com
Estimated Worth: $ 1, 55 billion
This marvelous building is the current residence of Queen Elizabeth II. It’s equipped with 52 bedrooms, 78 bathrooms, 188 staff rooms and 92 offices. It also has a jewelry workshop, a surgical room with a surgeon always at standby, swimming pool, cinema and more! Perhaps the greatest feature is the garden, which is currently the largest private garden in London. The Buckingham Palace attracts tourists from all over the world and is also a place where diplomats and statesmen from other countries are entertained during their stay in England.