where in the world is ... ?

"Through w........................... history mankind has gone to the ends of e............................ to chase the g............................... treasures. Now the final s...............................begins for the m.......................... elusive prize"

elusive means the same as ...?

• difficult to detect, find and catch
• not easy to describe and sell
• hard to copy

Watch the next episode to see what treasure, what prize they are chasing
or have you already guessed .. ?