Historical photography. Below is a view of the Rialto Bridge, which spans one of the city's famous canals, Venice, 125 years ago. Though not "real" color photographs, they have been colorized and, as such more accurately reflect a lively period in late 19th-century Europe.

The Library of Congress' page on the photocrom process explains it: "Photochrom prints are ink-based images produced through 'the direct photographic transfer of an original negative onto litho and chromographic printing plates.'"

Have you always wanted to visit Venice?

Wouldn't it be even more interesting to travel back in time and visit 19th century Venice?

You can do so through this wonderful collection of photographs.