It would seem obvious athletes are the most important part of the Olympics. But competing issues, from sponsorship rules to politics, means the rights of athletes aren't always the top priority.
As the Olympics get underway, what would the man who founded the modern Olympic movement think? Pierre de Coubertin's vision of the Olympics as a tool of peace and faith in youth still resonates.
The Olympics have been plagued by doping, corruption and political problems. But academic and former Olympian Bruce Kidd says the Olympic Games are still an important humanitarian movement.
Sporting extravaganzas are a way for globalising cities in emerging market economies to try and play the "modernity game". But they don't make the rules, and so they can never "win".
Sport participation in South Africa remains rooted in the dilemmas of colonial society. It necessitates an ongoing need for discourse, debate and dialogue on decolonisation in sport history.
The benefits of hosting the Olympics are so slim, or nonexistent, that fewer cities are bidding to host the games. That's a sign of serious trouble.
Investing in staging sport is ultimately a matter of turning the entire host environment into a stage.
Some Olympic venues have become withered husks – but it's not all bad news.
Three researchers examine the big challenges of urban development: from city leadership to lock-ins.
The Paralympic Games started off as a way to motivate and rehabilitate returned servicemen and women after the second world war, and has evolved tremendously since then.
The lasting effects of Olympic Games are measured in more than just concrete stadiums.
The Olympics are an opportunity for eSport to drive a new social movement.
A candid assessment of the impact of the games, from an academic on the ground.
Corporations benefit from using public spaces during the Olympic Games – but Rio made sure local businesses also got a slice of the pie.
Photographers can't pay the bills with Instagram likes – but it's pushing them to capture more spectacular images than ever before.
When it comes to winning Olympic gold, it turns out timing isn't everything.
Unravelling the common assumption that runners from Kenya, Ethiopia and Somalia have a natural advantage.
Will Brazil's troubles in preparing for the Rio Games change the global narrative of the value of hosting the Olympics?
More action sports will be on the Olympic bill in Tokyo with skateboarding, surfing and climbing added to the programme.
In a time when war and sports are the primary means of competition, Olympic gold has never been so valuable – or expensive.