Charles Godefroy taking his Nieuport 11 “Bébé” through the Arc de Triomphe in Paris on August 7th, 1919.

Construction of Brasilia city, which would later become the capital of Brazil. 1960.

Construction of the Eiffel tower in July, 1888.

A Boeing B-29 Superfortress bomber named “Enola Gay” was the bomber that dropped  the “Little Boy” (nuclear bomb) over Hiroshima, Japan during World War 2. It was the first aircraft to drop an atomic bomb as a weapon of war.

Albert Einstein's matriculation certificate that he received at the age of 17, showing his final grades from the Aargau Kantonsschule (on a scale of 1-6).

The US-built ENIAC (Electronic Numerical Integrator and Computer) was the first computer ever made. It combined, for the first time, the high speed of electronics with the ability to be programmed for many complex problems. It could add or subtract 5000 times a second, a thousand times faster than any other machine.

The unbroken seal on King Tut's Tomb.

The First Google Team in 1999.

The first Wal-Mart store was opened in 1962 by [a salesman] Sam Walton. It was called Walton's Five and Dime. [Source]

One of the first McDonald's restaurants open in 1948.

The moment George W. Bush was notified of the September 11 terrorist attacks.

Mathias Rust's Cessna 172 that landed illegally in the Red Square on May 28, 1987. A German amateur pilot that flew from Finland to Moscow (while being tracked by the Soviet air defense as well as Soviet Jet Interceptors - which never received permission to fire).

One of the first photos that was taken inside of Hitler's bunker (Führerbunker) in 1945 by Allied soldiers.

Madonna, Sting and Tupac hanging out.

The Quagga is an extinct subspecies of the plains zebra. The only Quagga to have been photographed alive was this mare at the Zoological Society of London's Zoo in Ragent's Park in 1870.

Black children standing behind a fence of a “whites-only” playground, 1956. Mobile, Alabama, USA.

German aircraft engineer Franz Kruckenberg engineered and built the Schienenzeppelin in 1929 – a train that was powered by a 600 horsepower aircraft BMW V12 motor. Propulsion was by means of a propeller located at the rear, it accelerated the railcar to 230.2 km/h (143.0 mph) setting the land speed record for a petrol powered rail vehicle. Only a single example was ever built, which due to safety concerns remained out of service and was finally dismantled in 1939.

Fat Man – the bomb that was detonated over Nagasaki, Japan. Here it is seen on a transport carriage after assembly on Tinian Island, 1945.

Tupolev Tu-144 being tested in flight, 1969. It was the first commercial supersonic transport aircraft (SST) ever made.

Baby cages designed for toddlers that lived in apartment buildings to get enough fresh air, 1939.

A unique mugshot of young Joseph Stalin from 1911.

The view of Central Park at night in Manhattan, 1937.

The “Great Manta” that was captured by Capt. A.L. Kahn on August 26, 1933.

German flag at half mast after the Hindenburg accident in Washington DC. 1937

Colourized photo of London, England after a German aerial raid. 1940.

Crew members of Apollo 1 rehearsing their water landing. 1966.

Hindenburg flies over Manhattan in 1936.

A Russian Sukhoi Su-25 close air support jet that was damaged by a Georgian MANPADS (Man Portable Air Defense System). Most likely a replica of the Soviet designed 9K38 Igla. Georgian Conflict, 2008.

Hoover Dam penstocks and outlet pipes such as this one were fabricated from 45,000 tons of steel and welded into nearly three miles of pipe varying from 8.5-30ft (2.6-9m) in diameter.

Soviet sniper, Lyudmila Pavlichenko. By the end of World War 2, she had 309 confirmed kills - thus making her the most successful female sniper in history.

A German soldier with kids on his motorcycle. Bulgaria, 1941.

A distant Kremlin is seen in this 1852 photo of Moscow, Russia.

Stalin is captured in this photograph by Lt. Gen. Nikolai Vlasik, the Soviet dictator’s bodyguard. Vlasik’s off-the-record photos of Stalin caused a sensation in the early 1960s when an enterprising Soviet journalist spirited some out, selling them to newspapers and magazines worldwide.

Hundreds of boats sit abandoned in the port of San Francisco, 1850. Beginning in 1848 thousands of people from all around the globe joined the Californian Gold Rush in a chance to 'strike it big'. Most of these boats were later stripped and recycled to build housing in San Francisco. Photo: Everett Collection/Rex Features 

Building of the Soviet Buran spacecraft, circa 1982.

George Bush Jr. has a 'leg up' on his father, President George Bush, as the President attempts to stretch prior to jogging at Fort McNair. The younger Bush, part owner of the Texas Rangers baseball team, was clowning for photographers. Photo: Corbis.

German prisoners of war marching east under the supervision of Soviet soldiers, 1944. Take note of the Soviet woman showing a 'dulya' with her hand to the Germans as they pass by.  

LZ 127 Graf Zeppelin floating over Washington DC, 1928.

This photo gives a great size comparison of Titanic's propellers.

The partially excavated Sphinx. Late 1800's. 

Bill (Clinton) & Hillary playing volleyball in Fayetteville, Arkansas, USA. 1975.

106-year old Armenian woman protecting her home with an AK-47. 1990.

Niels Bohr and Albert Einstein at the Bohr-Einstein debates over quantum mechanics

Horten H. VII (Ho 254) flying over Göttingen, Germany. It was one of the first flying wing experiments. ~1945.

Release of Windows 95.

Tsar Nicholas II goofing around with his friend in 1899.