The Hudson and the Palisades combine in making "Riverside" one of the most naturally beautiful driveways in the world. Yet it owes much also to the workers of magic in steel. Northward from Grant's Tomb and Claremont for half a mile or more it is upheld by giant arches of their making. Across a whole valley, this broad roadbed all glistening in the sun and streaked by the gay lines of endless pleasure traffic, rolls grandly on, supported by the silent strength of that great land bridge, the Viaduct.