In 1930s London, parents made up for a lack of garden space by suspending infants high outside tenements in wire cages. (See other such inventions here.)
"Kids with more experience in nature,
even if it's just a view from their room of a natural landscape,
are more psychologically resilient."
— Richard Louv, author of Last Child in the Woods:
Saving Our Children From Nature-Deficit Disorder,
quoted in Plenty magazine
Photo by Reg Speller/Fox Photos/Getty Images