© Getty Images 

Moscow 1980 - Russia had only five years to prepare for the Sochi Olympics and yet it managed to build more than 90 Olympic venues.

© Shutterstock

Moscow 1980 - The government inaugurated the Sheremetievo-II Airport specifically for the event.

© Shutterstock

Moscow 1980 -

They also constructed buildings like the hotel center of Izmailovo.

© Getty Images 

Moscow 1980 - Lujniki, the country's biggest stadium.

© Getty Images

Moscow 1980 -

Other construction projects included the sports complex, Olympic village, TV center structure, and Olympic press center. Most of these works remain available for public use to this day.

© Shutterstock

Barcelona 1992 - The city is undoubtedly the best example of an Olympic legacy.

© Getty Images

Barcelona 1992 - The capital of Catalonia was a run down place before the Olympic Games. After the Olympic Games of 1992 the city became one of the most sought after tourist destinations in the world.

© Getty Images

Barcelona 1992 -

One of the regions that changed the most was the port region, which became a leisure and tourism center.

© Shutterstock

Barcelona 1992 -

People can visit Montjuïc, where the stadium, museum, and the aquatic center of the Olympic park are situated.

© Shutterstock

Barcelona 1992 -

An additional four areas of facilities for the event were interconnected by 50 km of new streets.

© Shutterstock

Atlanta 1996 -

Approximately $300 million was invested in infrastructure, money which was found to be well spent after the games.

© Shutterstock

Atlanta 1996 -

The buildings at Georgia Tech, the city's technology institute, were part of the Olympic Village. The Olympic water park is now a recreation center.

© Shutterstock

Atlanta 1996 - Centennial Park is a public park where the Olympic Ring fountain is located.

© Shutterstock

Atlanta 1996 -

The Olympic Stadium that hosted the closing ceremony and track and field events is now Turner Field, home to the Atlanta Braves baseball team.

© Getty Images 

Sidney 2000 -

The city sought to be an example of sustainable alternatives to host the Olympic Games. So their legacy is based on this motto.

© Getty Images 

Sidney 2000 -

Approximately $6 billion was invested and the goal was urban development with the least possible negative impact. The government organized the event with the help of Greenpeace.

© Getty Images 

Sidney 2000 - The Olympic Village after the Games has become a mixed residential and commercial area and is considered one of the largest solar districts in the world.

© Getty Images

Sidney 2000 -

A station with seven train lines was built to give access to the Olympic Park in Homebush Bay. Thus the city inherited a fleet of natural gas-powered buses.

© Getty Images 

Sidney 2000 -

The ANZ Sydney stadium is now used for sporting and cultural events.

© Getty Images 

London 2012 -

The London Olympics was responsible for the complete revitalization of the eastern part of the city, where the Stratford neighborhood is.

© Getty Images 

London 2012 -

The two-year project was designed to decontaminate the region's rivers and soil.

© Getty Images 

London 2012 -

The Olympic complex in Queen Elizabeth Park has been transformed for public use after the event's end. The government maintained some attractions like the Aquatic Center, Velodrome, Stadium, Orbit Sculpture, and others.

© Getty Images 

London 2012 -

The Stratford neighborhood has gained a more efficient transport network, having the 2nd best connected train station in Europe.

© Getty Images 

London 2012 -

Those Olympic structures that could not be maintained were dismantled and residential buildings were built in their place.

© Getty Images 

Rio 2016 -

About $10 billion was spent on construction to host the Games. Now it remains uncertain on how these spaces will be used. The Barra da Tijuca Olympic Park, for example, will have much of its space used for residential and commercial developments.

© Getty Images 

Rio 2016 -

The port area of ​​Rio de Janeiro has been revitalized for the 2016 Olympic Games.

© Getty Images 

Rio 2016 -

Brazilian officials predicted the greatest Olympic legacy for the first Olympic venue in South America. This legacy is criticized to this day.

© Getty Images 

Rio 2016 -

The VLT transport system helped move people in the city during the Olympic Games and continues to transport people since they ended.

© Getty Images 

Rio 2016 -

Environmental plans included the treatment of sewage and decontamination of Guanabara Bay, but those plans were unsuccessful.

© Shutterstock 

Rio 2016 -

The decontamination and sewage treatment of the Jacarepaguá Lagoon was also a failure.

See also: The biggest scandals in Olympic history

© Shutterstock