Great Hall seen from the Upper Gallery, The Berlin Palace (Humboldt Forum), Unter den Linden, Berlin, Germany, Europe

Empire State Building, New York City, New York, United States of America, North America

View of interior of Union Station, Los Angeles, California, United States of America, North America

View of interior of Union Station, Los Angeles, California, United States of America, North America

Mixed Race boy and girl using computer in library

Mixed race student writing notes at desk

Bored student sitting at desk in classroom

Caucasian boy using laptop at desk

Close up of computer keyboard, files, cell phone and eyeglasses on office desk

Student reading book at desk in classroom

Mixed Race boy and girl using computer in library

Mixed Race teenage girl doing homework at desk

Teacher helping girls with workbook in classroom

Girls surrounding teacher with headache in classroom

Girls raising hand for teacher in classroom

Girl drawing Japanese script

Student talking at desk in classroom

Mixed Race girl reading digital tablet in library

Mixed Race girl reading book in library

Teacher helping girls in classroom

Caucasian boy and girl sitting at table coloring

Caucasian boy and girl sitting at table coloring

Close up of business newspaper with stocks

Portrait of Mixed Race girl in library

African girl holding addition flash cards

African girl holding book

Close up of computer keyboard, files and cell phone on office desk

Librarian sitting at desk in library

Young boy at school in Gojahaven, an Inuit settlement in the far north of Canada.

Hackers mask laptop

arrangement office elements dark background with notepad

ICC International Congress Centrum, information desk, Charlottenburg district, Berlin, Germany, Europe

Information desk, Hartsfield-Jackson Atlanta International Airport, Atlanta Airport, Atlanta, USA, North America

Open book on top of stack of books on desk

Open book on top of stack of books on desk

African American boy studying in classroom

Home study

Home study