Historical photos were digitally colored, and the results are beautiful

Officials ride in one of the penstock pipes of the soon-to-be-completed Hoover Dam in 1935.

History doesn't have to be just black-and-white.

Dynamichrome is a project dedicated to digitally reconstructing historical photos in color, offering a brighter glimpse into the past.

One photo even shows the Eiffel Tower in its original reddish-brown color. It's been painted multiple times since then.

Dynamichrome's director, Jordan Lloyd, teamed up with Retronaut website founder Wolfgang Wild to create a book featuring 130 of these photographs. "The Paper Time Machine" will be released in October 2017.

Check out some of the reconstructed historical photos in this gallery. 

Gutzon Borglum and a superintendent inspect work on Mount Rushmore in 1932.

The Golden Gate Bridge is still under construction in 1934.

 The Eiffel Tower is in the middle of being built in 1888.

Workers are busy assembling the Statue of Liberty inside French sculptor Frédéric Auguste Bartholdi's workshop in Paris in 1882.

In 1881, the Tower Bridge in London doesn't connect quite yet.

In 1942, during WWII, the Taj Mahal is partly covered in bamboo scaffolding to disguise it from enemy bombers. In front of it, Private First Class John C. Byrom, Jr., of Waco, Texas, is trying to catch a goldfish in the marble-lined pool. Corporal Anthony J. Scopelliti and Private First Class Ray Cherry are watching him try.