A period of relative stability has put the Iranian capital No1 on the list of world cities that have achieved biggest improvements in liveability over the past five years, as calculated by the Economist Intelligence Unit. The “most improved” top 10 contains some unexpected names. So, eg, the fourth place: Abidjan, Ivory Coast. Latest ranking: 128; Ranking five years ago: 131; Five-year index movement: 3.8%. Here: A supporter of Ivory Coast president Alassane Ouattara campaigns in a market in the city’s Koumassi quarter. (Photo by Sia Kambou/AFP Photo)

A woman sings as Tibetans celebrate the 80th birthday of their spiritual leader, the Dalai Lama, in Kathmandu, Nepal, Monday, July 6, 2015. Around 1,000 monks and other Tibetans gathered at the school compound to celebrate their spiritual leader's birthday. Exiled Tibetans allowed celebrating the Dalai Lama's birthday only inside school compound and refugee camps as long as the facilities do not contain slogans or banners protesting against China. Nepalese government has banned all kinds of Tibetan activities against Chinese rule in Tibet. (Photo by Niranjan Shrestha/AP Photo)

A boy runs as heavy rains and high waves brought by typhoon Linfa, locally named Egay, crash along a breakwater along Manila Bay at a slum area in Baseco, Tondo in Manila July 6, 2015. All shipping was ordered to remain in harbor and some flights were canceled in the northern Philippines, while schools were closed in the capital, Manila, on Monday due to flooding and landslides from a tropical storm, disaster officials said. Storm warnings were issued in at least 14 areas of the main Philippine island of Luzon as tropical storm Linfa moved slowly across the north of the Southeast Asian archipelago. It was carrying maximum wind gusts of 100 km per hour (60 mph). (Photo by Romeo Ranoco/Reuters)

Apple Senior VP of Worldwide Marketing Phil Schiller talks about the display on the new iPad during an Apple product launch event at Yerba Buena Center for the Arts on March 7, 2012 in San Francisco, California. In the first product release following the death of Steve Jobs, Apple Inc. introduced the third version of the iPad (iOS 5.1; Processor is an Apple A5X ARM-based unit; Display 2048 x 1536 pixels; Camera is set at 5 megapixels and has a 5-element lens plus auto face-detection, auto focus lock and image stabilisation for video; Wi-Fi + 4G) and an updated Apple TV. (Photo by Kevork Djansezian/Getty Images)

Twenty-one years after Kate Moss’s Calvin Klein debut, her little sister Lottie, 16, has made hers. Earlier this year, Lottie was signed to Moss’s agency, Storm Models. She then made her modelling debut in January, starring in her first fashion shoot for glossy magazine Dazed & Confused, followed by other appearances in Teen Vogue. Now, she’s back as the face and body of Calvin Klein Jeans x mytheresa.com The Re-Issue Project, an exclusive capsule collection of limited iconic denim pieces, which will only be sold on online retailer Mytheresa from 15 July. (Photo by Michael Avedon)

An Indonesian woman known as Linda (C) is helped by two Sharia officials after being caned for spending time in close proximity with a man who is not her husband, which is against Sharia law, in Banda Aceh on February 2, 2017. Aceh is the only province in the world's most populous Muslim-majority country that imposes sharia law. People can face floggings for a range of offences – from gambling, to drinking alcohol, to gay sеx. (Photo by Chaideer Mahyuddin/AFP Photo)

Bar girls entertain Indian men at a bar along the Walking Street where bars and sеx scenes are a commonplace July 31, 2016 in Pattaya, Thailand. Thailand's first female minister of tourism would like the sеx trade that is a huge business in the country to be banned. Tourists flock to Thailand for many sights including beautiful beaches but also for sеx tourism. Cities like Bangkok and Pattaya are well known as hubs of the Southeast Asian sеx trade, despite the fact that prostitution has been illegal in Thailand since 1960. (Photo by Paula Bronstein/Getty Images)