Porpoises leap inside a man-made lagoon in Oahu, Hawaii, 1966….



Porpoises leap inside a man-made lagoon in Oahu, Hawaii, 1966. Photograph by Thomas Nebbia, National Geographic Creative

Porpoises leap inside a man-made lagoon in Oahu, Hawaii, 1966….



Porpoises leap inside a man-made lagoon in Oahu, Hawaii, 1966. Photograph by Thomas Nebbia, National Geographic Creative

A chorus line high kicks during a show at Cafe Le Can Can in…



A chorus line high kicks during a show at Cafe Le Can Can in Miami Beach, Florida, 1963. Photograph by Dean Conger, National Geographic Creative

A chorus line high kicks during a show at Cafe Le Can Can in…



A chorus line high kicks during a show at Cafe Le Can Can in Miami Beach, Florida, 1963. Photograph by Dean Conger, National Geographic Creative

An informal portrait of a well dressed fashion designer at his…



An informal portrait of a well dressed fashion designer at his easel in France, 1918. Photograph by H. C. Ellis, National Geographic Creative

An informal portrait of a well dressed fashion designer at his…



An informal portrait of a well dressed fashion designer at his easel in France, 1918. Photograph by H. C. Ellis, National Geographic Creative

People relax beside a swimming pool at a country estate near…



People relax beside a swimming pool at a country estate near Phoenix, Arizona, 1928. Photograph by Clifton R. Adams, National Geographic Creative

People relax beside a swimming pool at a country estate near…



People relax beside a swimming pool at a country estate near Phoenix, Arizona, 1928. Photograph by Clifton R. Adams, National Geographic Creative

People peer through a natural window in the castellated cliffs…



People peer through a natural window in the castellated cliffs above the river in White Cliffs, Montana, 1971. Photograph by Volkmar K. Wentzel, National Geographic Creative

People peer through a natural window in the castellated cliffs…



People peer through a natural window in the castellated cliffs above the river in White Cliffs, Montana, 1971. Photograph by Volkmar K. Wentzel, National Geographic Creative