http://book.klll.cc/ebooks/subject/12299.opds?sort_order=downloads 2025-08-11T03:04:37Z Books about Pyramids (sorted by popularity) Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-08-11T03:04:37Z https://book.klll.cc/ebooks/subject/12299.opds?sort_order=title Sort Alphabetically by Title 2025-08-11T03:04:37Z https://book.klll.cc/ebooks/subject/12299.opds?sort_order=release_date Sort by Release Date 2025-08-11T03:04:37Z https://book.klll.cc/ebooks/40091.opds The Solution of the Pyramid Problem; or, Pyramid Discoveries Robert Ballard 2025-08-11T03:04:37Z https://book.klll.cc/ebooks/47291.opds The Storehouses of the King; Or, the Pyramids of Egypt Jane van Gelder 2025-08-11T03:04:37Z https://book.klll.cc/ebooks/20502.opds De Groote Pyramide (Dutch) H. J. van Ginkel