Tarahumara Runners – These legendary distance runners participate in a traditional relay game lasting multiple days. Male participants kick wooden balls as they run, whilst women use a stick and hoop.

Charreada – More than a sport, the charreada is a national celebration. Enjoyed by all generations, it showcases acrobatic cowboys and cowgirls, mariachi bands and carefully-bred animals.

Cliff Diving – One of Acapulco's most iconic attractions, La Quebrada cliff divers have risked their lives for generations by hurling themselves into the Pacific Ocean.

Female boxing – After 60 years, Cuba’s female boxers are punching through archaic rules that denied women – despite their staggering strength and skill – the right to fight in competitions.

Kite Fighting – In an aerial game played by children over the harsh streets of Brazil’s favelas, competitors race to cut their rivals' razor-sharp kite strings – or risk the same fate.

Capoeira – Part martial art, part agile dance, capoeira was born out of resistance. Presentations are accompanied by ancient songs and rhythms, played on various traditional instruments.

Reindeer Racing – This sport originates with the Sami – an indigenous people of northern Scandinavia. Men, women, and children race galloping reindeer at speeds of up to 40 km/h.

Fierljeppen – Born out of the necessity to jump over canals, the country's oldest sport is an odd mix of pole vaulting and long jump, requiring great athletic ability.

Course Landaise – This ancient style of acrobatic bull leaping is more theatre piece than bloodsport, where the bravery, speed and style of both torero and animal are equally evaluated.

Mountaineering – Climbing Mont Blanc requires courage and skill, but not all climbers have both. This story celebrates the guidance of experienced mountaineers – who help others overcome their fears.

Cycling - Nicknamed “the hell of the north”, this gruelling cycling race from Paris to the Belgian border – amongst the first to be open to women – is notorious for its challenging road conditions.

Big Wave Surfing – Europe's largest underwater canyon sets the stage for daring surfers (both male and female) to perform herculean stunts on colossal 30-metre waves.

Buzkashi – Known as the most dangerous game in Central Asia, Buzkashi is played by various nomadic tribes. Teams on horseback fight furiously for possession of a headless goat carcass.

Camel Racing – In recent years, basic robots have replaced child jockeys in this money-making industry – which draws on the traditions of ancient Bedouin tribes.

Dambe –  The gritty, bare-knuckle combat sport of dambe – which produces some of Africa’s toughest fighters – unfolds in one of the world's most intimidating playgrounds.

Amputee Soccer – Defying social expectations and physical limitations, this super-athletic community of amputee footballers is testament to the resilience of both human body and spirit.

Donga Stick Fighting – The fiercest sport in Africa sees participants battle with spears to demonstrate strength and bravery, and above all, to win over their love interests’ hearts.

Marathon des Sable – In one of the toughest marathons on the planet, runners from around the world gather in the desert of southern Morocco to race 254 km over a 6-day period.

Lutte avec Frappe – Dating back to the 11th century, this form of wrestling is not only about strength; winning is also said to offer protection from sorcery and misfortune.

Savika – An important rite of passage, savika sees young men prove their strength by clinging to the distinctive bump or horns of the zebu – a common cattle species on the island.

Ice Diving – Plunging into the bitterly-cold waters of the Italian Alps becomes a way to heal past traumas, with a goal of finding peace through physical pain, focus and boundaries.

Pigeon Racing – Invented in Belgium, the million-dollar sport of pigeon racing relies on careful breeding and rigorous training. Pigeons mate for life, flying as fast as they can to reach their partners.

Car Drifting – Neither religious pressures nor social inequality have prevented women from breaking into the male-dominated sport of drift racing.

Yoga – Despite its spiritual origins, yoga is a growing business, with over 300 million practitioners worldwide. Each year, Kentucky plays host to a national competition.

Bodybuilding  – Breaking from tradition, the bodybuilding world has adapted to include new groups of participants, re-examining ideas of what a perfect body looks like.

Formula-E – One of the world’s wealthiest sports, Formula-E requires automakers like Porsche, BMW and Mercedes-Benz to enter the electric-racing circuit. All the while, a young fan base follows the race on social media.