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 window cleaner passes a lighter to his colleague while rappelling from a new building in Tianjin March 23, 2007. (Photo by Reuters/Stringer)

German field telegraph operators at work in Warsaw. (Photo by Hulton Archive/Getty Images). 1st October 1914

Marilyn Monroe drinking a Coke and Jane Russell fixing her make-up during a break while filming “Genlemen Prefer Blondes”.

The scene in Star Lane, Dunmow, Essex, after a steam traction engine from Sussex on its way to the Saffron Walden Crank Up weekend steam show, crashed into a private dwelling on Friday, April 21, 2023. (Photo by Nicholas.T.Ansell/PA Images via Getty Images)

A medical staff member rests next to a patient infected with Covid-19 in the intensive care unit of Lozenets Hospitalin Sofia on November 9, 2021. Bulgaria is among the countries with the highest number of deaths compared to its population. (Photo by Nikolay Doychinov/AFP Photo)

“The Only Way Is Essex” star Yazmin Oukhellou, 27, showed off her toned figure in the minidress, which featured sеxy side cut-outs, as she headed out in Hertfordshire in southern Englandon on Saturday, August 14, 2021. (Photo by Splash News and Pictures)

A young lady poses for the camera as police steward boozers away from pubs and bars in Newcastle, United Kingdom on October 23, 2020. The extra restrictions which servely limits social mixing in hospitality venues will come into effect on October 23, 2020. (Photo by North News and Pictures/The Sun)