The term 'Great Journeys' can be summarized by the crossword solution 'ODYSSEYS', which is an 8-letter word. ODYSSEYS are a type of epic journey, often associated with Greek mythology. The most famous example is Homer's Odyssey, which follows the hero Odysseus on his 10-year journey home from the Trojan War. Other great journeys include Dante's Divine Comedy, Aeneas' journey to found Rome, and the travels of Sinbad the Sailor.