Top 10 Places to visit in Australia, the world's happiest nation

New Delhi: According to the Paris-based Organization for Economic Cooperation and Development, Australia is the world's happiest country this year.The land down under edged out Sweden, Canada, Norway and Switzerland for top honors.OECD analyzed its 34 member states (plus Brazil and Russia). So let's take you through the 10 best tourist spots in Australia: 1. Sydney Australia's largest city with arguably the most stunning harbor. The city offers many interesting sites to visit such as the Opera House, Darling Harbour with marine aquarium, lots of Shopping malls, museums, and it worth a visit to the other side of the bay including the Zoo and the beach of Mainly. Visiting the downtown tower (Sydney Tower) will have a complete view of the city from the top. 2. The Great Barrier ReefThis is one of the most recognized natural wonders of the world. It's the world's largest reef system with over 2,900 individual reefs and 900 islands stretching for over 344,000 square kilometres and is clearly visible from space. 3. Gold Coast With its beautiful surfing beaches, amazing canals and waterway systems, perfect weather all year round and exciting nightlife make it a mecca for tourists.The surrounding mountains and National Parks should not be missed with many waterfalls, flora and fauna to be appreciated. 4. The Barossa Valley , South Australia Is a must see for all wine lovers when travelling to Australia; the major wine producing area here and home to some of the most wonderful wines including the world famous Penfolds Grange Hermitage red wine.5. Magnetic island In front of Townsville, with fantastic beaches. 2/3 of the Island is considered National Park with many colonies of Koalas and Kangaroos to be seen in their natural habitat.6. Kakadu National ParkLocated in The Northern Territory is renowned for the richness of its Aboriginal cultural sites. There are more than 5000 recorded art sites illustrating Aboriginal culture over a period of 20,000 thousand years.7. Ayers Rocks In the heart of Australia, close to the city of Alice Springs. It is the biggest rock monolith in the world and a sacred place to the Aborigines. All the surroundins are deserts full of special places. Alice Springs is the departure point. 8. The Great Ocean RoadAn Australian National Heritage listed 243-kilometre stretch of road along the south-eastern coast of Victoria. As far as Australia tourism and scenery goes this is some of the most amazing you will ever see.9. The Kimberleys, Western Australia An un-paralleled Australia Tourism destination with its ancient, steep-sided mountain ranges and spectacular rugged gorges, steep ridges, breathtaking waterfalls and bottomless shimmering lakes.10. Tasmania Tassie, as it's called, is promoted as the natural state, owing to its large and relatively unspoiled natural environment. This is one of the prettiest places in Australia. Nice cities with excellent infra structure to visitors. The nature is the highlight, with spectacular beaches. The mountains and lagoons are well known for their beauty and wild life, and there are many historical places from the time Tasmania was a biggest prison for British convicts.