Back in the day, attractions at the zoo in Central Park included shows where keepers would attempt risky feats with the animals. Pictured is a man placing his head in a hippo’s mouth in 1910

August 1936 Part of the fire-ridden area where CCC boys from the Lo poc, Arroyo Grande and Pinto Lake camps fought to control a fire to the Santa Lucia National Park.

An unidentified U.S. marine looks skyward from his trench during an artillery and mortar attack on the Con Thien outpost near the DMZ in Vietnam, October 14, 1967.

American golf champion Arnold Palmer made shots from he second floor of the Eiffel Tower in Paris, on Oct.ober 14, 1976.

This picturesque scene showing a deep layer of fresh snow was snapped at the Watchtower Ski Camp in Jasper, circa 1950

The vintage photos were taken in Banff, Jasper and Waterton Lakes in the 1950s (pictured fox in a rare July snowstorm in Jasper in 1950)

Many of today's popular ski gear brands didn't exist when this skier, wearing a jumper, made his way down Mount Norquay in 1953

An Afghan Army parade through Kabul with spectators lining the streets and waving flags at the procession

Afghan workers make a street repair in Kabul, but still had time to smile for the camera

Abandoned French machinery on the bank of Panama Canal near Cristobal lies unused following the arrest of Ferdinand de Lesseps1

Abandoned French machinery on the bank of Panama Canal near Cristobal lies unused following the arrest of Ferdinand de Lesseps

A shot looking down Glasshouse Street to the junction with Sherwood Street and towards the lights of Piccadilly Circus in London in 1928

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

A small crowd awaits a skier as he makes his way down a mountain during a race at the Jasper Ski Meet in 1959

Crowd of people and a goat cart with a sign reading 'Fruiterer', Sydney, Austraila circa 1920-1939