October 3, 2000
How does a bridge withstand the forces of nature and traffic? Host David Macaulay takes viewers from the stone arch bridges of the...Read more
October 10, 2000
How does a dome support itself? Ever since the Roman Emperor Hadrian topped his Pantheon with a dome, this roof-with-class has bee...Read more
October 17, 2000
What does it take to erect a skyscraper 100 stories tall? From the medieval towers of Italy's San Gimignano to today's race to bui...Read more
October 24, 2000
How does a dam resist the crush of millions of gallons of water? Host David Macaulay surveys the dam -- the biggest, costliest str...Read more
October 31, 2000
What keeps a tunnel from collapsing? Tunnels have advanced from dangerous, claustrophobic passages to spacious, safe subterranean ...Read more