Clues
Answers

Codex:
Wander without end for this magic stick
Turns frogs into princes, a simple trick
4 letters

Logic Key:
What number is the answer to this riddle?
Cone alone flour minus call

Rose:
Famed for its angel painted ceiling frieze
Seeing it, Pope Pius fell to his knees

Vitruvian Man:
Part pulses
Frieze meal (4,6)