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)

The Aurora Borealis (Northern Lights) is seen over the sky near Inari in Lapland, Finland on February 14, 2019. (Photo by Alexander Kuznetsov/Reuters)

A man dressed as a bear and wearing a protective face mask amid the outbreak of the coronavirus disease (COVID-19) stands in front of a fountain in central Kyiv, Ukraine on August 11, 2020. (Photo by Valentyn Ogirenko/Reuters)

English-Albanian singer and songwriter Dua Lipa arrives at the premiere of “Barbie” on Sunday, July 9, 2023, at The Shrine Auditorium in Los Angeles. (Photo by Chris Pizzello/AP Photo)

Pietro Sighel of Italy crashes during his heat of the men's 1,000-meter during the short track speedskating competition at the 2022 Winter Olympics, Saturday, February 5, 2022, in Beijing. (Photo by David J. Phillip/AP Photo)

School girls hold hands while looking out at the Indian Ocean at Galle Face beach in Colombo on December 9, 2022. (Photo by Ishara S. Kodikara/AFP Photo)

A street merchant waits for customers in Niamey, Niger, Monday, August 14, 2023. Niger's mutinous soldiers say they will prosecute deposed President Mohamed Bazoum for “high treason” and undermining state security. (Photo by Sam Mednick/AP Photo)

The Euro sculpture is partially reflected in a puddle on a cobblestone pavement in front of the headquarters of the European Central Bank in Frankfurt on Jan. 21. (Kai Pfaffenbach/Reuters)