"Treasure Chests Found
Many Hyrulian people saved family heirlooms and other treasures in chests handcrafted by skilled artisans. Historians found them in Hyrulian homes and mountain caves. Inside they discovered jewels, armor and arrows."
Treasure Chests appear often in the The Legend of Zelda series. They can contain items ranging from equipment to Rupees to enemies or keys. It is a well known fact that when Link opens said chest, exciting music sounds.
Treasure Chest from Majora's Mask
Treasure Chest from The Wind Waker
Boss Key Treasure Chest from The Wind Waker
The Boss Key Treasure Chest from Twilight Princess
Treasure Chest from Twilight Princess
Treasure Chest Miiverse Stamp from Twilight Princess HD
Boss Key Treasure Chest from Skyward Sword