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National Geographic provides free maps, photos, videos and daily news stories, as well as articles and features about animals, the environment, cultures, history, world music, and travel.

Geometry from the Land of the Incas, problems involving circles and triangles. On line Math tutoring Antonio Gutierrez. Inca City on Mars Nasa. Also Cuzco, Lost City of the Incas, Machu Picchu, Inca Trail, Incan Quipu, Nazca Lines, Lord of Sipan, Pe...

Explore the updated online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of articles, biographies, videos, images, and web sites.

Dictionary.com - the largest and most trusted free online dictionary. Instantly look up accurate and extensive definitions and word meanings, and hear audio pronunciations.

Timelines and study guides for ancient civilizations, signed general interest articles on scientific findings in archaeology, a blog on archaeology issues, photo essays on archaeological sites, current archaeology digs, book reviews, puzzles, a guide...

Online Dictionary - Multiple dictionaries including: English dictionary, medical dictionary, legal dictionary, financial dictionary, computer dictionary, thesaurus, dictionary of acronyms and abbreviations, dictionary of idioms, thesaurus, Columbia e...

Browse or search past online issues of Archaeology Magazine. Ordering information for back issues still in print.

The Math Forum is the comprehensive resource for math education on the Internet. Some features include a K-12 math expert help service, an extensive database of math sites, online resources for teaching and learning math, plus much more.

Glossary of Terminology of the Shamanic & Ceremonial Traditions of the Inca Medicine Lineage as Practiced in the United States