A group of American engineers who worked on the Panama Canal John R. Freeman, Frederic P. Stearns and James D. Schuyler, Arthur P. Davis, Henry A. Allen, Isham Randolph and Allen Hazen

A Flemish demonstrator, one of thousands who gathered for a march through Brussels to protest against what the Flemings call Oct 14, 1962

A fire control administrative assistant and former Yacolt Burn project forester looks out over the sweeping panorama of devastation where trees will someday replace snags.

A Dodge Powerwagon Fire truck at theThe Waterman Guard Station in San Bernardino National Forest, Calif.

In 1872, a nightly summer ritual took place from the top of Glacier Point in Yosemite National Park. Staff at the old Glacier Point Hotel create large fires and burn them down to piles of red-hot embers.

The RMS Titanic is pictured in Belfast before it made its way to Southampton ahead of its maiden voyage in April 1912

Farmer and sons walking in the face of a dust storm, Oklahoma, April 1936 

Long before the days of high-performance equipment, basic wooden skis and poles were the norm (pictured Mount Norquay in 1956)

Skiers wear trousers, long coats and caps on Mount Norquay in 1956

Spectators were able to get dangerously close to ski jumpers, who did not wear any safety gear, at the Jasper Ski Meet in 1959

A model line-up of the various designs suggested for the shape of Concorde, with the eventual deign is at the far end of the row

Vintage Snapshots Showcase the Thriving Streets of Paris in the 1960s-2

Vintage Snapshots Showcase the Thriving Streets of Paris in the 1960s-1

Vintage Snapshots Showcase the Thriving Streets of Paris in the 1960s

The Concorde underwent several years of design and testing in the UK and France, including this vibration test at Toulouse in 1967