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Pink Floyds Inflatable Pig Battersea Power Station

A 40-foot long inflatable pig suspended between two of the chimneys at Battersea Power Station, London, during a photoshoot for the cover of Pink Floyd's album Animals, 6th November 1976. Whether it was an epic publicity stunt or a genuine mishap remains a topic of debate in some circles. Either way, the cover shoot for 1977's Animals became one of Pink Floyd's signature moments.
Roger Waters and artist Aubrey Powell, co-founder of the art group Hipgnosis, came up with the concept of an inflatable pig floating over Britain's iconic Battersea Power Station. But things didn't go as planned at the December 1976 photo shoot, as the 40-foot balloon broke from its moorings on one of Battersea's southern chimneys, rising directly into the path of planes landing at Heathrow Airport. All flights were grounded, and Powell was arrested, even as police helicopters and the Royal Air Force arrived to chase the pig. It eventually fell to the ground miles way in Kent.
(Photo by Keystone/Hulton Archive/Getty Images)

© 2008 Getty Images

The French Crown

The various crowns of France used from the 6th century (numbers 1 and 2) to the 11th (12 and 13). Crown number 4 is from the 7th Century, and 3, 6, 7, 9, 11, and 15 are ninth century. Crowns numbers 5, 8, 10, 14, and 16 are 10th century. Original Artwork: Drawing and engraved by Ferdinand Sere for 'Le Moyen Age et la Renaissance' by P Lacroix. (Photo by Hulton Archive/Getty Images)

Cacti, chromolithograph, published in 1900

Cacti: 1) Cereus flagelliformis; 2) Bottle cactus (Hariota salicornioides); 3) Schlumbergera gaertneri (Epiphyllum truncatum); 4) Barbados gooseberry (Pereskia aculeata); 5) Mistletoe cactus (Rhipsalis baccifera, or Rhipsalis sarmentacea); 6) Rhipsalis cassutha; 7) Rainbow pincushion (Mammillaria rhodantha); 8) Leuchtenbergia principis; 9) Ferocactus hamatacanthus (or Echinocactus longihamatus); 10) Echinopsis cinnabarina; 11) Pachycereus marginatus (or Cereus gemmatus); 12) Carnegiea gigantea (or Cereus giganteus); 13) Pelecyphora aselliformis; 14) Opuntia tuna; 15) Cereus grandiflorus; 16) Melon cactus (Melocactus intortus, or Melocactus communis); 17) Old man cactus (Cephalocereus senilis); 18) Echinocactus longihamatus; 20) Ariocarpus retusus; 21) Opuntia cochenillifera, or Nopalea coccinelhifera; 22) Echinocereus procumbens. Chromolithograph, published in 1900.