Know the world's top 10 underestimated cities

New Delhi: There are some top metros of the world like New York, Tokyo, London, Los Angeles which are always appreciated for their good environment, infrastructure, development, and lifestyles.But there are also many cities which deserve appreciation for their good quality of life.We have compiled here the world's top 10 underestimated cities: 1. Queens, USOne of the counties in New York State, Queens is one of the most populous cities in the state. It has a population of 2.3 million and virtually qualifies itself as a city.It is the home to two busiest airports JFK International Airport and LaGuardia Airport.The county has 48% foreign born citizens representing 100 different nations and speaking over 138 different languages. 2. Bergen, Norway The second largest city of Norway has a population of 400,000. Known as the city of seven mountains, it is a small city amidst huge mountains.The city is an international centre for aquaculture, shipping, offshore petroleum industry and subsea technology, and a national centre for higher education, tourism and finance. 3. San Juan, Puerto Rico Widely known for bioluminescent bays that sparkle at night, and beaches, San Juan is the capital of Commonwealth of Puerto Rico, an unincorporated territory of the United States.It is also famous for the 16th- and 17th-century Spanish colonial buildings.It is a beautiful city and is Puerto Rico's most important seaport. 4. Darwin, Australia Darwin is a small city just two hours away from Singapore. It is a good gateway to Australia. The city has a tropical climate and inhabited by the Larrakia people.Mindil Beach has some great open-air markets; open from April to October, from sunset till late.5. Isfahan, Iran Located about 340 kms south of Tehran, Isfahan is the third largest city after Tehran. The Zayande River is the heart of Isfahan. The bridges over the river include some of the finest architecture in Isfahan. The bazaars of the city are also popular.6. Lisbon, Portugal Lisbon is a beautiful city no less than Paris or Rome. The capital of Portugal is home to the Gulbenkian, one of the world's great museums, housing a collection of Egyptian, Green, Roman, Islamic, Asian and European art and the Belem tower, an iconic city landmark. 7. Glasgow, Scotland Glasgow, however, arguably has the best music scene in Britain (though Londoners might dispute this) with scores of clubs and concert halls, including the much raved-about Barrowland.Today it is one of Europe's top ten financial centres and home to Scotland's leading business houses. 8. Hoi An, Vietnam Technically not a city, but this seaside heritage spot on Vietnam's Central Coast is such an enchanting contrast to hectic tourist magnet Hanoi that it's worth a mention.The former trading port is known for its historic architecture, a mix of Vietnamese, Japanese, Chinese and European styles.Visitors rave about its fairytale lanterns, Vietnamese silk and custom tailoring -- it is the place to come if you're looking to revamp your wardrobe.9. Calgary, Alberta, Canada It has a cowboy heritage all of its own, and is one of Canada's fastest-growing cities.In winter, hockey team Calgary Flames roars into action, while in summer, their place is taken by the local football heroes, Calgary Stampeders and The Calgary Stampede -- one of North America's best loved sporting events.If you're more "do-er" than watcher, the Olympic park offers seasonal skiing, zip lines and mountain biking.Calgary's also home to the Glenbow Museum, Canada's largest, housing a vast horde of art and artefacts documenting the history and culture of Western Canada. 10. Durban, South Africa Perceived to be unsafe, it's not surprising that the city, on the country's eastern coast, isn't exactly first port of call for visitors.But, in large part thanks to its recent stint as World Cup host, tourist numbers are up. Locals rave about their city's year-round sunshine and vibrant, cosmopolitan vibe.Among cities, Durban is home to the highest concentration of Indians outside the subcontinent and it's a blend of African and European cultures too.