The Algorithmia is an interesting web app developed by a team at UC Berkeley led by PhD student Richard Zhang, which uses the tech of Colorful Image Colorization algorithm to process any B&W images, where we can upload black and white photos, it will transform them into the colored almost instantly.
Construction workers having lunch on top of a skyscraper, New York, 1932
First boat to go through Gatun water locks in Panama Canal, 1913
Half-way built Eiffel Tower, July 1888
U.S. soldiers raising flag in Iwo Jima, Japan, 1945
Children of U.S., 1950
Hydrogen bomb testing in Bikini Atoll, Marshall Islands
Freshly carved out Mount Rushmore, U.S.
Hitler saluting the crowd
Hindenburg disaster in New Jersey, U.S., 1937