What does the orange temple major step offer, and does the third-step power trigger once?

Question

Accepted Answer

Take one Discovery tile or an immediate power-up on an unlocked worker of your choice. The third-step power triggers once when you land on it and is optional; moving the die does not perform its action.

Teotihuacan: City of Gods

What does the orange temple major step offer, and does the third-step power trigger once?