The 2014 Winter Olympics in Sochi, Russia are coming to an end with the closing ceremonies wrapping things up on Sunday, Feb. 23.

Once all the medals are handed out, the flags lowered and the crowds dissolved, the XXII Winter Games will go down as the most expensive Olympic Games in history, costing Russia roughly $51 billion dollars and $39 billion more than first expected, Business Insider reports.

So what happens next? Well, many Olympians will go home and return to training for the 2018 Winter Games in Pyeongchang, South Korea. As for the future of Sochi's Olympic venues, their fates remain uncertain.

Russian officials say they have plans for each piece of the Olympic city and park. The Russian national soccer team will use the Fisht Olympic Stadium for matches and as a training centre when it's not in use as a a venue for live entertainment or shows.

The nearby “Bolshoi” ice stadium will serve as a multi-purpose sports centre and will even give rise to a Russian hockey league for the area. Meanwhile, the hotels that once housed athletes will be transformed into apartments, according to the Ruskky Reporter, a local online news publication.

But others aren't sure Sochi's history as a Soviet-era sea-side resort town and the current Olympic layout are compatible, sparking concerns that the venues could go to waste, be left to rot or lay abandoned like the facilities used in the 1984 Winter Olympics in Sarajevo.

“In Sochi, the concern there is that it is a very small town, they put these seven facilities in one circle with not much else happening around them. Originally two of those facilities were going to be temporary and taken to a different location [after the games], but the plans changed,” Lisa Delpy Neirotti, a sports management professor at George Washington University, told Voice of America.

Russia has found some success in re-purposing its old Olympic facilities, with the Luzhniki stadium being a prime example. Once the star of the 1980 Summer Olympics, it's still used today by the nation's professional soccer teams and plays host to major international soccer championships, according to National Geographic.

Then there are other venues, like the ones built for the 2004 Olympics in Athens that have effectively become ghost towns and shells of what used to be beacons of glory. Here's what's happened to the last few cities that have played host to the Olympics.

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  • 1984 Winter Olympics: Sarajevo (Then)

    Winter Olympics Opening ceremonies take place for the XIV Winter Olympics in Sarajevo's Kosevo stadium Feb. 8, 1984 AP

  • 1984 Winter Olympics: Sarajevo (Now)

    The bobsleigh track from the Olympic Winter Games in 1984 on Mount Trebevic above Sarajevo. During the war, the track was abandoned and used by the Serbian Army during the siege of Sarajevo.

  • 1984 Summer Olympics Los Angeles, USA: Memorial Stadium (Then)

    The L.A. Coliseum was completed in 1923. It has only one regular major tenant, University of Southern California football. In this shot taken on August 12, work is underway to prepare the stadium for the upcoming football season, including constructing the temporary end zone grandstand.

  • 1984 Summer Olympics Los Angeles, USA: Memorial Stadium (2013)

    A general view at the finish line during the 20th Annual EIF Revlon Run/Walk For Women held at Los Angeles Memorial Coliseum at Exposition Park on Saturday, May 11, 2013 in Los Angeles, California.

  • 1988 Winter Olympics: Calgary, Canada (Then)

    Horses graze outside Olympic Park in Calgary on Wednesday, Jan. 27, 1988 where preparations continue for the February 13 start of the Winter Olympics. Machine-made snow is used on the 90-and 70-meter jumps.

  • 1988 Winter Olympics: Calgary Canada (Now)

  • 1988 Summer Olympics: Seoul, Korea (Then)

    This is an overview taken Sept. 13, 1988 in Seoul showing the Olympic stadium along the Han-Gang River where the opening ceremonies for the summer Olympic games will take place. (AP Photo/Dick Fung)

  • 1988 Summer Olympics: Seoul, Korea (Now)

  • 1992 Winter Olympics: Albertville, France (Then)

    The general view of the medal ceremony for the men's single luge even on Feb. 10, 1992 during the Winter Olympics in Albertville, France.

  • 1992 Winter Olympics: Albertville, France (2013)

    The Halle olympique and the Olympic flame cauldron of the 1992 Winter Olympics, Albertville, Savoie, France.

  • 1992 Summer Olympics, Barcelona, Spain (Then)

  • 1992 Summer Olympics, Barcelona, Spain (2006)

    This fish by Frank Gehry was built as a focal point for the 1992 Olympic Games. It is one of the world's largest sculptures.

  • 1996 Winter Olympics: Lillehammer, Norway (Then)

    Rally spectators leave the final stage, which finished in the 1994 Winter Olympics Ski Jump Stadium, after the Rally of Norway February 11, 2006 in Lillehammer, Norway.

  • 1996 Winter Olympics: Lillehammer, Norway (2006)

  • 1996 Summer Olympics: Atlanta, USA (Then)

    Children play at Centennial Olympic Park in Atlanta, Georgia on July 10, 1996.

  • 1996 Summer Olympics: Atlanta, USA (2011)

    The Olympic Rings fountain at Centennial Olympic Park, a legacy of the 1996 Olympic Games is seen on Saturday, Aug. 20, 2011 in Atlanta.

  • 1998 Winter Olympics: Nagano, Japan (Then)

    The 1998 Winter Olympic stadium in Nagano, Japan.

  • 1998 Winter Olympics: Nagano, Japan (Now)

    The 1998 Winter Olympic stadium in Nagano, Japan now serves as a training facility for baseball players.

  • 2000 Summer Olympics: Sydney, Australia (Then)

    Australian sporting icon Cathy Freeman appears with the Olympic torch after lighting the Olympic cauldron Sep. 15, 2000 in Sydney to ignite the 27th Olympiad of the modern era, and the first of the new millennium.

  • 2000 Summer Olympics: Sydney, Australia (2010)

    Water cascades down after the re-lighting of the Olympic Cauldron (R) with the former Olympic Stadium (L), at the Sydney Olympic Park on September 15, 2010.

  • 2002 Winter Games: Salt Lake City, Utah, USA (Then)

    The spectator seating and jumps for the ski jumping competitions at the Utah Olympic Park during the 2002 Winter Olympics.

  • 2002 Winter Games: Salt Lake City, Utah, USA (Now)

    Park of the park now serves as the Joe Quinney Winter Sports Center for athletes and visitors.

  • 2004 Summer Olympics: Athens, Greece (Then)

    The Olympic Park (left) and the Olympic Sports Complex (right) reach completion on June, 28 2004.

  • 2004 Summer Olympics: Athens, Greece (2012)

    Cars occupy a small proportion of a giant car park in the 2004 Olympic Games Complex on February 18, 2012 in Athens, Greece. In 2004 the Olympics returned to Greece, the birthplace of the ancient and modern Olympic Games, however the legacy of the Games has been called into question with many facilities falling into disrepair less than 8 years after they were held.

  • 2006 Winter Olympics: Turin, Italy (Then)

    A view of the Olympic village that was unveiled in Turin, Italy, Tuesday, Jan. 31, 2006. The village includes some 52 thousand square meters of residences which develop along with 750 apartments and 40 thousand square meters dedicated to the village services. The Village will host over 2,500 people, among athletes and technicians. A logistic centre, medical services, shops, restaurants, gyms and reception areas for athletes and their staff will be provided here, as well as a large parking area.

  • 2006 Winter Olympics: Turin, Italy (Now)

  • 2008 Summer Olympics: Beijing, China's Water Cube (Then)

    Melissa Stockwell, right, of the United States, chats with coach Jimi Flowers during a U.S. team training session for the 2008 Beijing Paralympic Games, at the National Aquatics Center, known as the Water Cube, in Beijing Friday Sept. 5, 2008.

  • 2008 Summer Olympics: Beijing, China's Water Cube (2010)

    A man works on a water slide at a water park which is still under construction inside China's National Aquatic Center, also known as the "Water Cube" in Beijing, China, Wednesday, July 28, 2010. The park officially opened on Aug. 8 2010.

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