Admission for 4 to the Museum of Illusions. Museum of Illusions Philadelphia is like no place you’ve been before. We are a one-of-a-kind edutainment destination where you can immerse yourself in in the wonderful world of illusions! Guests will enjoy more than 60 visual and educational exhibits featuring holograms, stereograms, optical illusions, and immersive rooms that are designed to tease the senses and trick the mind. Located in Old City, Philadelphia