Muslims seen through doorway from corridor, seated in prayer service, then worshippers all bow down in prayer.

A group of Tai Chi practitioners performing in unison with swords in Longtan Park, Beijing, People's Republic of China.

View looking down on backs of Muslim worshippers in front rows of congregation in British mosque, worshippers are all wearing prayer hats bowing down in prayer then stand up then kneel down again, interior of mosque is decorated with Arabic writing

Large shoal of fish swirling underwater viewed from below with sun shining through surface of water, fish constantly change direction

Close up of rows of children holding cards as part of display in Arirang celebrations in the May Day stadium in Pyongyang, North Korea, only the children's heads can be seen

A group of Tai Chi practitioners performing in unison in Longtan Park, Beijing, People's Republic of China.

Large shoal of fish swirling underwater viewed from below with sun shining through surface of water, fish constantly change direction

A group of Tai Chi practitioners performing in unison with swords in Longtan Park, Beijing, People's Republic of China.

A group of Tai Chi practitioners performing in unison in Longtan Park, Beijing, People's Republic of China.

View looking down on horizontal rows of Muslim worshippers standing in rows then bowing down to kneel on floor in prayer

A group of Tai Chi practitioners performing in unison using red folding fans in Longtan Park, Beijing, People's Republic of China.

A group of Tai Chi practitioners performing in unison with swords in Longtan Park, Beijing, People's Republic of China.

Side view of row of worshippers' heads on green prayer mats in mosque raised up out of shot leaving hands resting on knees

Back view of rows of Muslim worshippers in mosque bowing down in prayer

A group of Tai Chi practitioners performing in unison in Longtan Park, Beijing, People's Republic of China.

A group of Tai Chi practitioners performing in unison in Longtan Park, Beijing, People's Republic of China.

Rows of coloured cards held up by small boys taking part in display as part of Arirang celebrations in the May Day stadium in Pyongyang, North Korea, the children's heads peer over the cards then quickly change the cards to show a different colour

A group of Tai Chi practitioners performing in unison with swords in Longtan Park, Beijing, People's Republic of China.

A group of Tai Chi practitioners performing in unison with swords in Longtan Park, Beijing, People's Republic of China.

A group of Tai Chi practitioners performing in unison using red folding fans in Longtan Park, Beijing, People's Republic of China.

Historical Astronomical timepiece demonstrating how planets move and rotate around each other

A group of Tai Chi practitioners performing in unison with swords in Longtan Park, Beijing, People's Republic of China.

A group of Tai Chi practitioners performing in unison with swords in Longtan Park, Beijing, People's Republic of China.

Black and white footage of folk dancers dancing in a group in white outfits in the 1930s.

Zoom out to wide shot of a group of Tai Chi practitioners performing in unison using red folding fans in Longtan Park, Beijing, People's Republic of China.

Arizona, USA: Silhouette of chain gang members (prisoners / criminals) against blue and yellow sky. Feet and legs of chain gang

A group of Tai Chi practitioners performing in unison with swords in Longtan Park, Beijing, People's Republic of China.

High angle view of a group of Tai Chi practitioners performing in unison with swords in Longtan Park, Beijing, People's Republic of China.

A team of cheerleaders walk in formation waving pom-poms during a Mardi Gras parade in New Orleans, Louisiana, USA.

Historical Astronomical timepiece demonstrating how planets move and rotate around each other

View looking down on diagonal rows of Muslim worshippers bowing down in prayer with heads on patterned carpet on floor and soles of feet showing, then all sit up at same time then bow down again

Czech Republic: A sequence of a Spanish flamenco dancer surrounded by cheering people as he dances flamenco. Close up view of his shoes tapping on the hard floor.

Scotland. Two teams of men engaging in a tug-of-war at Highland Games. Crowd look on in background. Royal standards visible in background.