On September 30, 1935, the Hoover Dam was dedicated by President Franklin D Roosevelt. Construction was completed six months later, an astounding 2 years ahead of schedule, despite immense challenges and experimental building techniques. Photosphere by Roelof de Vries

On this day in 1885, the Tramway in Blackpool opened - the first of its kind in the world. These days the 18km (11 mile) system carries more than 6 million passengers a year, mostly on shiny new trams, though…

Eighty years ago today the RMS Queen Mary was launched in Clydebank Scotland. She served as a luxury cruise liner for Cunard for about three decades, until age forced her into retirement. Instead of being scrapped, she was moored permanently…

On September 25, 1911, ground was broken for Fenway Park in Boston, the oldest ballpark still in use in the Major Leagues. The Red Sox started playing in the iconic stadium the following season. In 1999 plans were announced to…

On this day in 1906, Devils Tower in Wyoming was declared a National Monument by President Theodore Roosevelt. Seventy years later the iconic landmark achieved world-wide fame when it was used as a key location in the film Close Encounters…

On September 23, 1962, the Lincoln Center for the Performing Arts opened in New York. The Avery Fisher Hall, home of the New York Philharmonic, was the first facility to be used. Others for dance and opera opened in subsequent…