One of our docents, Maura Roche, took the lovely image above of Ossining's Double Arch Bridge, which is popular with bridge fans (yes there's a whole world of bridge fans out there.)
Our Friend Fred Charles sent us the image below of Devil's Bridge in Ceredigion, Wales that looks pretty similar. In the Welsh case, these three were built over a period of hundreds of years. The oldest is from 1100, the one above that from 1753 and the top one from 1901.