In the 1920s, the USPS placed giant concrete arrows every ten miles across the United States to guide pilots along the first transcontinental air mail routes. Hundreds still exist (though they've lost their bright yellow paint and night beacons). LOVE. And MUST FIND.
Also on these boards
The Blizzard of 1888 - With up to 50 inches of snow dumped across the northeast United States this monster blizzard was aptly dubbed ‘The Great White Hurricane’. Major metropolitan areas like New York faced severe winds of up to 45miles an hour, drifts of more than 50 feet and floods caused when the snow melted. This is the winter that Laura Ingalls Wilder wrote about in "The Long Winter".
Skunk Ape (Florida) This large, hairy bipedal mammal is said to inhabit the Southern United States, but it's most often spotted in Florida. It gets its name from its unpleasant odor, which is said to be similar to rotten eggs or methane. Although reports of the creature were most common in the 1960s and 1970s, sightings continue today, but the most famous one took place in 2000.