A vast, searchable database of pre-1900 watercolours documenting the four corners of the world before the invention of photography - you can search by subject or location. Absolutely wonderful.https://t.co/gr81z2r6NK
[pictured, the ruins at Luxor, ca. 1830] pic.twitter.com/vqCzONc7Bb

— Irène DB (@UrbanFoxxxx) February 2, 2019

Be prepared to lose a few hours - the site is *huge*, and seriously addictive. I've just spent half an hour on 'Venice' - and there's still more pic.twitter.com/VkekguTjXJ

— Irène DB (@UrbanFoxxxx) February 2, 2019