The jewels in the large glass case attracted the attention of the museum visitors.

gleaming

Explanation:

not sure but yeah...

The crown jewels in the large glass case attracted the attention of the museum visitors.

Explanation:

The Crown Jewels. Kings and queens of England have stored crowns, robes, and other items of their ceremonial regalia at the Tower of London for over 600 years. Since the 1600s, the coronation regalia itself, commonly known as the 'Crown Jewels' have been protected at the Tower.

this could be an answer, as the crown jewels are a treasure in great Britain.

the world may never know

this means that germany had to pay the allied countries. reparations are/is essentially payment for something that they have done wrong, so after ww1, germany was forced to pay reparations so they could replenish the allied countries resources' that they had lost during the war.