Useful sites* for learning about ancient art, architecture, and material culture
*for museum websites, see this page
General
Heilbrunn Timeline of Art History
https://www.metmuseum.org/toah/
A great place to start if you are new to the ancient world.
SmartHistory: The Center for Public Art History
https://smarthistory.org/ancient-mediterranean/
Essays about individual artworks and periods of art. Aimed at undergraduate and high school students, as well as museum visitors, grad students, and informal learners.
Peopling the Past
Blog and v-blog posts about various aspects of life in the ancient world
Greek & Roman
Metropolitan Museum of Art's Greek and Roman Art Page
https://www.metmuseum.org/about-the-met/collection-areas/greek-and-roman-art
Collection of the museum's resources related to ancient Greek and Roman art, including links to highlights, blog posts, videos, publications, and more.
Atlas of Roman Construction Techniques
Beazley Archive
https://www.beazley.ox.ac.uk/index.htm
Greek vases, ancient gemstones, and more
Pompeii in Pictures
https://pompeiiinpictures.com/pompeiiinpictures/
Useful resource for all things Pompeii and Bay of Naples
Rogue Classicism
Blog with a daily roundup of links to news, blog posts, new podcasts and more related to the ancient Greek and Roman worlds.
Classical Atlas Project
http://www.unc.edu/depts/cl_atlas/
Online resources related to ancient geography and cartography
Egyptian
Digital Egypt for Universities
https://www.ucl.ac.uk/museums-static/digitalegypt/Welcome.html
Hosted by the University College, London, a useful resource for all things Ancient Egypt.
Preserving Egypt's Layered History
https://g.co/arts/CseCXhwGuG4cyQFd9
A collaborative project between the American Research Center in Egypt (ARCE) and Google Arts & Culture, this site presents short articles, videos, and virtual tours related to the study of ancient Egypt.
Metropolitan Museum of Art's Ancient Egypt page
https://www.metmuseum.org/about-the-met/collection-areas/egyptian-art
Collection of the Museums various resources for the study of Egyptian art, including links to collection highlights, videos, essays, and publications.
Meketre Scene Repository
Digital index of tomb painting scenes from the Middle Kingdom, Egypt
Theban Mapping Project
https://thebanmappingproject.com/tombs/kv-18-rameses-x
Everything about the Valley of the Kings, Egypt: Maps, plans, photos, articles, bibliography
AEGARON: Ancient Egyptian Architecture Online
http://drupaldev.aegaron.ucla.edu/
Standardized architectural drawings of select buildings from ancient Egypt, ranging from workmen's houses to temple complexes, dating from the Old Kingdom through Late Antiquity. Created by UCLA.
UCLA Encyclopedia of Egyptology
https://escholarship.org/uc/nelc_uee
Short articles on various topics of ancient Egyptian language, history, and culture; aimed at the more advanced student.
Western Asia/Near East/Middle East
Metropolitan Museum of Art's Ancient Near Eastern Art page
https://www.metmuseum.org/about-the-met/collection-areas/ancient-near-eastern-art
Collection of the Museum's various resources for the study of the art of the Ancient Near East, including links to highlights, blog posts, videos, publications and more.
The Ancient Near East Today
https://www.asor.org/anetoday/recent-articles
Well-written short articles by leading scholars on a variety of topics related to life in the Ancient Near East and Egypt, aimed at a non-specialist audience.
Ancient Mesopotamian Gods and Goddesses
http://oracc.museum.upenn.edu/amgg/index.html
A guide to fifty most important deities that appear in Mesopotamian literature and art.
Encyclopedia Iranica
Articles on the past and present of Iranian speaking peoples and their contribution to global history and culture. Lots of good stuff here related to the ancient Persians, Elamites, Parthians, Sassanians, and others. Frequently used by specialist students and researchers, but the information is accessible to the beginner.