New York City’s Grand Central Terminal (opened in 1913) has the world’s largest Tiffany glass clock, surrounded by sculptures of Minera, Hercules, and Mercury. It is 48 feet high with a circumference of 13 feet. The four-sided clock has a secret door that leads to the ticket booth. Read more about New York City landmarks at the turn of the last century in On the Shore (see NOVELS) and the city’s historical events and places in BEHIND THE STORY.