Gem Battlefield

The  is an abandoned Gem location the Crystal Gems visit in "Serious Steven" and "Rose's Scabbard" and can be seen in Pearl's hologram in "Sworn to the Sword".

History
According to Pearl, the field is the site of a historic battle over 5,000 years ago, where many gem warriors fell and were destroyed in combat. It is currently overrun by wild strawberries and butterflies, in stark contrast with the battle wreckage still strewn throughout the location. The Gems traveled here to retrieve an ancient gemstone located inside the Pyramid Temple.

In "Sworn to the Sword", Pearl shows in her holograms some of the battle that took place in the field. The field is shown barren and engulfed in flames, with battle wreckage scattered throughout the battlefield.

Trivia

 * The bulk of the battlefield appears to be laden with unending fields of strawberries, possibly a reference to the Beatles' song "Strawberry Fields Forever."
 * Strawberries (Fragaria sp.) belong to the family Rosaceae, or the rose family.
 * This may suggest that the strawberries are the offspring of Rose's sentient plants that she may have used in this battle.
 * This is the location of the last (or only) war between the Crystal Gems and other Gems: Rose said that if they lost they would be killed, and if they won they would never be able to go back (to the homeworld.)
 * Strawberries grow exceptionally well in mineral-rich soil. The strawberries might be so large because they're feeding off the nutrients of the fallen gems in the soil.
 * The Gem Battlefield's location is possibly much far off of Beach City, as in Rose's Scabbard there is still daylight outside of the Beach House, but when Lion teleported to to the Gem Battlefield, it appeared to be nighttime in the background.
 * The Gem Battlefield serves as the second "world" in the game Attack the Light.
 * In addition to the green light, the purple light is captured in a cutscene here as well.
 * In the game, this location is home to green beetle, flower, and fly light monsters.

Sworn to the Sword
Campo de Batalla Gema