Share Word Search Why Humans Build Up To create your word search for "Why Humans Build Up", first select the words you want to use. Choose up to twenty words for your game by clicking on a suggested word or enter your own by typing over an existing word. Suggestions for your word search; click to add. OBSERVATORIES PERCEPTIVELY SKYSCRAPERS FASCINATING ACCESSIBLE POPULATION DIFFERENT BUILDINGS DETAILED TRANSMIT REVIEWS REASONS OUTSIDE ANSWER GREGOR TOWERS FINELY USEFUL GLOBAL STAND LEARN TITLE ALIKE WORLD MEAN NEED SAFE GIZA GIVE PART How do you want the words displayed in the game? Forward Down Diagonal Backward Puzzle Title