Thanks to the obsession of Theodore Judah to route trains through and over the Sierra Nevada Mountains, we get to enjoy the Norden tunnels. Maybe that’s a stretch—but not really. Judah did find a way, and Track #1 was in use for 125 years before being decommissioned in 1993. The tunnels and snow sheds were designed to keep the tracks somewhat clear of rocks and snow. Today, tunnels #6, #7, and #8 are a tourist attraction, a canvas for street artists, and a unique one-mile trail for hikers.