At the summit of a dense forested plateau in Venezuela is the world's largest sandstone sinkhole, Sima Humboldt, which drops 1,000 feet (314 m) . Its neighbor, Sima Martel, is another impressive sinkhole. At the bottom of Sima Humboldt is a completely isolated forest. Sinkhole openings where mini-jungles have grown are known as dolines, and they are filled with life, which has been buffered from the outside world by the cave. - Credit: Dreamstime
Migrant farm workers harvest carrots, Upstate New York, 1959.
Una vista dell’Isola Bella incorniciata da alberetti di betulla, in primo piano giochi infantili in riva al lago. Lago Maggiore, Orario dal 1 maggio al 30 settembre 1912, Archivi Federali Svizzeri, Swiss Poster Collection | Flickr - Photo Sharing!
LIFE.com presents photographs -- most of them never published in LIFE magazine -- taken in Hiroshima after the end of the Second World War.
<b>Not published in LIFE. </b> Urakami Cathedral (Roman Catholic), Nagasaki, September, 1945.
<b>Not published in LIFE.</b> Nagasaki, September, 1945.