Tunnel Vision: Man Builds Million Dollar Model Railway

A train enthusiast has devoted 30 years of his life to his model railroad, which could be worth more than $3m. Howard Zane, 77 spends most of his time in the basement of his home in Columbia, Maryland working on his 3,000 square foot masterpiece that he made from scratch. His fascination began at the age of three when his father gave him a train set.