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Amidst criticism over whether or not the city is equipped to host, the 2016 Summer Olympics will descend upon Rio de Janiero, Brazil in just under a week, bringing hundreds of thousands of people to the sprawling seaside city for the first Summer Games hosted in South America.

Athletes around the world have been training and participating in Olympic trials and tests to qualify for the big event. And for the first time in history, The International Olympic Committee named 10 refugee athletes — from Syria, South Sudan, Ethiopia, and the Democratic Republic of Congo — who will compete as Team Refugee Olympic Athletes.

Barbara Nwaba competes during the heptathlon shot put at the U.S. Olympic Track and Field Trials in Eugene, Oregon.

Athletes take part during the Men's 3000 meter Steeplechase at the Ibero-American Athletics championship, at Rio Olympic Stadium.

Peamwilai Laopeam, Thailand's boxer who hopes to win gold at the Rio Olympics, looks on during a training session at a gym in Bangkok, Thailand.

Weightlifter Neelam Riaz trains at a sports hall in Lahore, Pakistan.

Marcos Chuva of Portugal takes part in the Men's Long Jump Final at the Ibero-American Athletics championship, a 2016 Rio Olympics test event that took place at Rio Olympic Stadium in Rio de Janeiro, Brazil.

France synchronized swimming team training session at an Olympic Games Qualification Tournament.

Brazilian badminton players Lohaynny Vicente, left, 20, and her sister Luana Vicente, 22, pose for a photograph on the roof of a house in Chacrinha favela in Rio de Janeiro, Brazil.

Denis Eradiri of Bulgaria takes part in the Men's Long Jump Final at the Ibero-American Athletics championship, a 2016 Rio Olympics test event at Rio Olympic Stadium in Rio de Janeiro, Brazil.

Brazil's synchronized swimmers Maria Eduarda Miccuci, right, and Luisa Borges pose for a photograph before a training session at the Rio Olympic Park in Rio de Janeiro, Brazil.

Athletes exercise at the University of Eldoret in western Kenya.

Paraolympic athlete Leandro de Miranda throws the ball during the presentation of the Arena Carioca 1 in Rio de Janeiro, Brazil.

Aisen Chen and Yue Lin of China compete in the Men's 10m Synchro Platform Final at the 2016 FINA Diving World Cup, a test event for Rio 2016 Olympic Games, at the Maria Lenk Aquatic center in Rio de Janeiro, Brazil.

Michael Phelps spits water after swimming in the men's 200-meter individual medley preliminaries at the U.S. Olympic swimming trials in Omaha.

Heather Miller-Koch clears the bar during the heptathlon high jump at the U.S. Olympic Track and Field Trials in Eugene, Oregon.

Racers go through the water pit during the women's 3000-meter steeplechase final at the U.S. Olympic Track and Field Trials in Eugene, Oregon.

Brazil's synchronized swimmers Luisa Borges (front) and Maria Eduarda Miccuci perform during a training session at the Rio Olympic Park.

Thailand's badminton player Ratchanok Intanon, takes a break during an afternoon training session at a gym in Bangkok, Thailand.

Luis Cabrera of Venezuela, left, fights with Rohit Tokas of India during the International Boxing Tournament, which is a test event for Rio 2016 Olympic Games in Rio de Janeiro, Brazil.

Spain's Rocio Velazquez competes during the diving women's 3-meter springboard final event.

Luca Vettori, left, Stefano Mengozzi, center, and Oleg Antonov, right, of Italy block a ball from Serbia during their FIVB Men's Volleyball World League final round group match in Rio de Janeiro, Brazil.

Tirunesh Dibaba runs during a training session in Addis Ababa, Ethiopia.

Members of the South Korean Fencing team train during the South Korean Rio Olympics team Media Session in Seoul, South Korea.

Competitors jump into the waters of Copacabana as they take part in the International Marathon Swimming event, a test event for the Rio 2016 Olympic Games in Rio de Janeiro, Brazil.

Popole Misenga, a refugee from the Democratic Republic of Congo and a judo athlete, trains during a session at the Reacao Institute in Rio de Janeiro, Brazil.

Competitors take part in the International BMX Cycling Challenge at the Rio 2016 Olympic Games BMX cycling track, which is part of the X-Park at the Deodoro Sports Complex.

Belarussian rhythmic gymnast Melitina Staniouta attends a training session at a sports base in Minsk, Belarus as she prepares for the 2016 Rio Olympics.

Competitors ride near Prainha beach during the International Road Cycling Challenge, a test event for the Rio 2016 Olympic Games, in Rio de Janeiro.

David Oliveira of Brazil gets ready to take part in the International Marathon Swimming event at Copacabana, in Rio de Janeiro, Brazil.