Above: At the height of its popularity, bridge was played at business and academic gatherings and at society functions, including this 1937 game at Pittsburgh’s Loendi Social and Literary Club. Dr.

For nearly a century a bridge has spanned the Royal Gorge nearly 1,000 feet above the Arkansas River near Cañon City. The steep rock walls of the canyon make for a dramatic, if dizzying view from the ...

The Mackinac Bridge—still one of the world’s most inspiring structures— was a risky proposition from the beginning. It struggled to pay its debts in its youth and adolescence, and though it has ...