Now that the athletes, tourists and Olympic officials have left Sochi, questions linger over what will become of the Black Sea resort town.

Before seeing a reported $51-billion investment, making it the most expensive Olympics ever, Sochi was Russia's unofficial summer capital that served as a place of leisure and recuperation.

Business-owners in the region now hope that Sochi will serve as both a summer and winter destination.

"I think we expect only an increase in the number of clients after everything is finished," says Alexey Akindinov of the Rosa Khutor Alpine Ski Resort.   

Five ice sports venues were built inside the Olympic park while another five venues for snow and sliding sports were built in the mountain cluster.

New roads, a modern train system and a power plant were also part of the infrastructure needed to transform Sochi for the 17-day event, while some of the nonsporting facilities, like hotels, weren't finished in time for the Games.

The Russian government already has plans to host the Russian Grand Prix in Sochi and the newly-constructed Fisht Olympic Stadium will host the 2018 FIFA World Cup.

But if previous Games serve as an example, the prospects aren't great in Sochi.

"Afterwards what's going to happen is you have this massive housing project, massive Olympic park, and huge shopping malls," Olympic historian Dave Wallechinsky told CTV News.

A decade after Greece spent $15 billion to stage the 2004 Summer Games, many of nearly two dozen Olympic facilities have been abandoned.

Some Beijing Olympic venues, such as the rowing and kayaking centre, baseball arena and BMX track, have been left either deserted or been completely demolished.

Meanwhile, the Olympic Village that was built for the 1980 Lake Placid Olympic Games was later turned into a prison.

With a report from CTV's Genevieve Beauchemin