Your mother’s advice is the most worthy one! 😉 Have you ever been to Berkeley, CA? Of course. You must have driven through its famous tunnel many times.  The Caldecott Tunnel is an east–west highway tunnel through the Berkeley Hills between Oakland and Orinda, California. Its four bores carry California State Route 24. Accidents happened b/c of the poor light system there. On one side … More Berkeley Tunnels!