Tightened budgets in recent years all but pushed these sister-city efforts into obscurity, but thanks to persistence and local fundraising, the cross-cultural and cross-global friendships are enjoying something of a revival.

Recent months have seen an avalanche of new lesbian, gay, bisexual and transgender (LGBT)-friendly initiatives in Rio: vocational training courses for transvestites, anti-bullying projects aimed at gay and lesbian students and new legislation outlawing discrimination in the city's nightclubs.

Manchester is the city that tried to turn itself around by turning itself into a brand. The result has been an undeniable improvement. Here is the most astonishing fact about Manchester's regeneration: where residents were once desperate to leave the city, now, for the first time in 50 years, people are flocking back.

Jackson Mayor Harvey Johnson Jr. left the country Monday night, bound for Turkey on a weeklong trip seeking a "sister city" relationship with the municipality of Kahramanmaras....The cultural exchange trip is sponsored and paid for by the Turquoise Council of Americans and Eurasians, city spokesman Chris Mims said.

Since the fall of communism, nations around the globe have worked not only to distinguish themselves, but to market themselves as well. Now cities are the new nation-states, and competition for markets and dollars is fiercer than ever. Urban centres face enormous opportunity – and pressure – to sell what makes them unique.

Cities in Fukushima prefecture struggle to cope with the stigma of becoming as synonymous with nuclear crisis as Chernobyl. Even areas that have lower radiation readings than many of the world’s major cities, are finding everything from their goods to their tourist spots — and even their people — shunned.

Seven years later, Jankowski’s vision of a collaborative cultural exchange between the sister cities is finally about to become a reality, as the Jakarta-Berlin Arts Festival kicks off in Germany on Saturday.

Washington, D.C. and Rome make what could be described as a historic “power couple.” Throughout world history, some of the most significant events have happened in these two cities. Moreover, both capitols are beacons of culture and diplomacy for their respective nations.