Imagine travelling to one of the most expensive cities in the world and enjoying visiting some must-see-locations for free? It would may be even slightly ironic! But it is possible! The 10 most expensive cities in the world as of now are: 1. Tokyo                          6. Sydney 2. Oslo                            7. Melbourne 3. Osaka                          8. Frankfurt 4. Paris                            9. Geneva 5. Zurich                         10. Singapore   Here are some expensive cities with free possibilities to enjoy and where to experience home swap! In Tokyo you can visit the Sony Building which are four floors of the most advanced high-tech technology that you can play around with. You can also visit the Tokyo Metropolitan Government Building where you can view an amazing view of Tokyo and Mount Fiji from the 45th floor. Normally the museums in Oslo are free, especially if you carry the Oslo Pass with you. The National Gallery is Norways largest gallery of art where you will find artists like Picasso and Edvard Munch. And do not miss out on the Torchlight riverwalk in the month of September along the Akerselva river. Sydneys oldest church the St. James Church with an incredible architechture, offers free tours and concerts for travellers to come and visit. And to get out of the city the Bicentennial Park is one of Australias most important wetland ecosystems where you can stroll around and admire the surrounding. When you travel to Singapore visit the National Library of Singapore with 530,000 print and non-print materials and is over 7 storeys tall! In Geneva dont miss out the English Garden, a little away from the city, where you can enjoy the panoramic views of Lake Geneva. But what you must not miss in the English Garden is a huge 16.4 feet clock with over 6,000 different types of flowers. Home swap combined to these free destinations is an ideal way to save some money! Check out Knoks house exchange listings and find out where you can enjoy your next vacations!