St. Louis Arch

"A documentary about the Saint Louis Arch, the Gateway Arch that rises over the Mississippi River and symbolizes the westward expansion of the United States. This construction and engineering milestone was built in 1967, is 630 feet tall, contains 40,000 tons of steel and concrete, and is the biggest man-made arch in the world."
"Discusses the engineering challenges of the design and construction of the St. Louis Arch, the largest man-made arch in the world and a symbolic memorial to westward expansion."@en
"Extensive photos and film clips of its construction; interviews with the inventors, engineers, and contractors who transformed the dream into a reality; and a behind-the-scenes tour."@en
"A documentary about the Saint Louis Arch, the Gateway Arch, that rises over the Mississippi River and symbolizes the westward expansion of the United States. This construction and engineering milestone was built in 1967, is 630 feet tall, contains 40,000 tons of steel and concrete, and is the biggest man-made arch in the world."
"The 40,000-ton St. Louis Arch is the largest of its kind in the world. This program looks at how its simple and elegant form results from remarkable achievements in construction and engineering."@en