Kennedy Space Center in Florida participate in a training exercise at the Shuttle Landing Facility. Original from NASA .… Free Image from public domain license 
Young boy covering his face with an autumn leaf
We are proud to support Hope for Children on their mission to ensure… Free Image from public domain license 
Kid painting with watercolors
We are proud to support Hope for Children on their mission to ensure children in the most… Free Image from public domain license 
Vintage European style abacus engraving from New York's Chinatown. A historical presentation of its people and places by… Free Image from public domain license 
Rear view of kid drawing on a black board
We are proud to support Hope for Children on their mission to ensure children in… Free Image from public domain license 
Abacus from Map Modeling in Geography, Including the Use of Sand, Clay, Putty, Paper Pulp, Plaster of Paris... Also Chalk… Free Image from public domain license