Visitors gather beneath the Christ the Redeemer statue as Maracana stadium, the site of the Olympic opening ceremonies, stands in the background on July 4, 2016 in Rio de Janeiro, Brazil. <br><br>Political, economic and public health problems ranging from the impeachment of President Dilma Rousseff to the spread of the Zika virus have plagued the lead-up to the 2016 Summer Olympic Games in Rio, which has cost Brazil as much as $20 billion dollars according to some estimates.

Children walk near a body part, covered in a plastic bag, which was discovered on Copacabana Beach near the Olympic beach volleyball venue on June 29, 2016 in Rio de Janeiro, Brazil.

A body floats in the waters of Guanabara bay, a sailing venue for the 2016 Olympics, in Rio de Janeiro, June 27, 2016.

The Athletes' Village for the Rio 2016 Olympic Games in the Barra da Tijuca neighborhood stands next to the polluted Jacarepagua lagoon on July 4, 2016 in Rio de Janeiro, Brazil.

A discarded sofa litters the shore of Guanabara Bay in Rio de Janeiro, Brazil. The sailing regatta at the Rio de Janeiro Olympics takes place at the bay. The troubled waters of Guanabara Bay have made news for the wrong reasons, with a study by The Associated Press showing high levels of viruses and sometimes bacteria from human sewage.

Construction workers repair a broken boat ramp at the Olympic sailing venue at Marina da Gloria before the Rio 2016 Olympic Games in Rio de Janeiro, Brazil, July 31, 2016. The main ramp of Marina da Gloria, the sailing venue of the Rio de Janeiro Olympics, partially collapsed on July 30, 2016, less than a week before the opening ceremonies.

Workers erect scaffolding to repair the Ciclovia Tim Maia bike lane, destroyed by a wave that left two people dead and one missing in Rio de Janeiro, Brazil, on June 13, 2016. An Olympic beautification project inaugurated in January, a 50-meter section was swept away on April 21 by a large wave.

Cyclists train at the Olympic Velodrome at Olympic Park on June 26, 2016 in Rio de Janeiro, Brazil. Repeated delays and contract disputes forced two cycling test events to be canceled, according to The Associated Press.

People gather on a street where construction of a new light rail system has been delayed in the Port Zone, June 17, 2016 in Rio de Janeiro, Brazil. While a stretch of the system has partially opened to the public, most other sections are behind schedule.

People worked on a new underground subway tunnel below Ipanema neighborhood in Rio de Janeiro, Brazil. Last-minute construction on the line has created fears after an April bike lane collapse that plunged two joggers to their deaths.

Banners are displayed at the apartments for the Australian Olympic team at the Olympic Village on July 24, 2016. The Australian team did not move into the athletes village after the country's chef de mission, Kitty Chiller, declared it as "not safe or ready.”

A bedroom in one of the Olympic Village units, where electrical and plumbing problems are keeping athletes at bay.

A man works in Rio de Janeiro during an awareness and prevention campaign against the mosquito Aedes aegypti, the transmitter of Zika virus, in Rio de Janeiro, Feb. 13, 2016.

A man walked through his house, which is supported on stilts, in Recife, Brazil, Jan. 22, 2016. Zika has spread from Brazil throughout Latin America, prompting the World Health Organization to declare an international public health emergency.

Local residents in the Santa Teresa neighborhood in Rio de Janeiro put up a banner to warn visitors about insecurity in the area after three Spanish athletes were robbed nearby while training for the Olympic Games, June 22, 2016.

Brazilian Marine personnel patrol the training sessions of rowing teams set to compete in the 2016 Olympic Games in Rio de Janeiro, July 29, 2016. A private contractor failed to hire enough people to fulfill their obligation for security screening outside olympic venues, so the Brazilian police were forced to take over the duties with less than a week to go.

On June 22, 2016, the World Anti-Doping Agency suspended the Brazilian Doping Control Laboratory's accreditation due to "non-conformity with the International Standard for Laboratories." The suspension prohibits the lab from performing anti-doping analysis on blood or urine samples. In this May 8, 2015 file photo, lab technicians work at the laboratory in Rio de Janeiro, Brazil.

Workers refurbish an old bridge as a newly constructed bridge stands in the background in Rio de Janeiro, Brazil, May 25, 2016. Brazil's Treasury this week covered the foreign debt that Rio de Janeiro state failed to pay amid its budget crunch, raising the specter of additional bailouts by a cash-strapped federal government.

Supporters of suspended President Dilma Rousseff protest at a rally against interim President Michel Temer on June 10, 2016, in Rio de Janeiro. Impeachment proceedings against Rousseff continue as Temer rules the country on an interim basis ahead of the Rio 2016 Olympic Games.

A man wears a T-shirt calling for the impeachment of Brazilian President Dilma Rousseff during a protest near Copacabana Beach in Rio de Janeiro, Brazil, March 15, 2015.

A jaguar used in an Olympic torch relay ceremony was shot to death after it escaped its leash and tried to attack a soldier, during an Olympic ceremony in Manaus, northern Brazil, on June 20, 2016.