Hosting the Olympics can be an economic burden on a country, especially if the host nation has to build venues for the games.
Throughout Olympic history, we've seen that once the games are over, these venues often become abandoned, crumbling as they go unused.
Already, the venues from Rio 2016 are falling apart, and they're not the only ones. Former host cities like Saravejo, Athens, and Beijing have had venues suffer the same fate.
Pyeongchang will avoid such a fate, as they plan to demolish their Olympic stadium when the games are over.
Take a look at some photos below.
Sam Belden and Emmett Knowlton contributed to this report.
In 2016, Rio de Janeiro hosted the first Olympic Games in Latin America in nearly 40 years.
The city has yet to clear away much of the debris created by the Games. Here's what's left of the Rio Media Center, demolished in September.
The site has become a health hazard. It is located in downtown Rio, close to public facilities like city hall, a convention center and a day care.
Many Olympic sites are littered with rusty metal.
Maracana Stadium, where the football tournament was held.
The grass is almost completely dry.
Looters ransacked the stadium back in January, taking items like televisions, fire extinguishers and a statue.
Aquatics facilities are also in disrepair. This one was covered by translucent tapestries before they started to wear away.
It looks even worse without them.
Inside, the stadium is deserted. Puddles of stagnant water cover the floors, creating a breeding ground for mosquitoes.
The facility's exterior isn't much better. The city was supposed to tear down the aquatics stadium soon after the Olympics, but no progress has been made so far.
The Olympic golf course is mostly deserted. There are sometimes only three or four groups playing at a time.
The course cost around $20 million to build.
Olympic signage continues to loom throughout the city.
A view of Rio from the mostly abandoned Olympic Park.
Rio's Olympic Village. Thousands of apartments remain unoccupied.
This water tank has been abandoned.
So were most of the city's efforts to clean up Guanabara Bay. The bay was the site of the sailing and other open-water events.
Cleaning up Guanabara Bay was a big part of Rio's successful bid to host the Games.
Lying in Rio's rubble are thousands of pamphlets from the Games — scars of an Olympics that proved to be more than the city bargained for.
Sarajevo hosted the Winter Olympics in 1984.
One decade later, civil war broke out amid the breakup of what was the country of Yugoslavia.
Some of the Olympic venues were repurposed and used as military facilities.
The bobsled facility was turned into an artillery stronghold during the war.
Today the heavily graffitied course is sometimes used for BMX races.
A dog walks past the Kosevo Stadium, where the opening ceremonies were held.
And weeds grow over the walls of the Kosevo Stadium.
The abandoned ski jump at Mount Igman.
Seating is overrun with grass and weeds.
Another angle of the ski jump.
The track itself is covered in debris.
The ski jump through a broken window.
This is what's left of the figure skating facility, Zetra Hall.
Atlanta hosted the Summer Olympics in 1996. The Atlanta-Fulton County Stadium was used for baseball, but was demolished in 1997. The space was turned into 4,000 parking spaces.
Source: Atlanta Journal-Constitution
The cauldron was moved from Atlanta's Centennial Olympic Stadium when the stadium was renamed Turner Field and repurposed for the Braves. The cauldron now sits idly overlooking a highway.
Source: Around the Rings
Beijing hosted the 2008 Summer Olympics and will host the 2022 Winter Olympics.
A sign from the area where the baseball stadium once stood.
A stray dog on a field that was once inside the baseball stadium.
A makeshift broom in what was once an Olympic "green area."
Tourists next to the rings in a former "green area" from the Olympics.
The parking lot for the cycling stadium is now used for driving tests.
A rusting sign from the kayaking facility.
A security guard with a flat tire from his bicycle at the kayaking venue.
The three empty poles in the left of the shot once flew country flags of medal-winning Olympians.
The BMX facility.
Many of their stadiums are shut out from the public, like the beach volleyball facility.
Panels on the outside of the beach volleyball facility are falling off.
A boat sails past the stands and observation tower from the rowing facility.
The polluted waters near the facility.
Athens went $15 billion over its budget to prepare for the 2004 Summer Olympics.
Greece shouldered the cost overruns, and many of the facilities have fallen into disuse.
The Olympic Village is abandoned.
The city planned to turn the Olympic Village into public housing.
Thousands of families applied to live there, but the whole project fell through.
Seating areas are overgrown with weeds.
And stairs and covered in rust.
The canoe and kayak facility was the first in Olympic history to be filled with saltwater rather than freshwater.
Source: New York Times