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What Are the 100 Best Miles of the Appalachian Trail? We Asked Two Thru-Hikers to Choose.
The Appalachian Trail Conservancy—the nonprofit that supports the United States’ most iconic footpath—turns 100 this year. To ...
L'Italo-Americano2d
The arch: how the Etruscans and Romans changed architecture forever
However, it was the Romans who fully embraced and refined the arch, turning it into a fundamental element of their engineering: by improving materials — especially through the development of concrete ...