Spawn

On Simply Vanilla, Spawn is the area within 500 blocks on each axis from the world origin (0/0) and the area in which players first appear when they join the server. This combined with the central location make Spawn a popular location for players looking to interact with others, for example through trading, fighting or griefing. The area from 500 up to 10.000 blocks beyond Spawn is often called the Greater Spawn Area. It is there that new starter bases can be found, and it is also a place where planned player fights occur.

Builds
During the First Crusade an obsidian castle was built at 600 / 300. During the Second Crusade an obsidian version of the logo of the group was built at Spawn within a few hours.

Settings
On smaller servers, spawn is always on the same block for everyone. Some players took advantage of that to trap players, and the spawn zone was made bigger through plugins. At one point, the entire enlargened spawn area was flooded, but that was lost during the rollback.

Nether
Nether Spawn is a wasteland of lava and floating blocks and nether portals. At its center the Nether Hub was constructed. It is made of obisidian and contains many portals. Nether Hub is subject to many cycles of griefing and rebuilding. The Nether Roof can easily be reached from the Nether Hub through a missing bedrock block at 0/128/15.

End
The End Spawn Island hosts the Spawn Platform at 100/50/0 and the Exit Portal at 0/60/0. Next to the Exit Portal an additional bedrock block can be found. The End Spawn Island is mostly flooded except the area around the Spawn Platform and an obsidian pathway leading from the Spawn Platform the Exit Portal. The "roof" of the End Spawn Island is an obsidian mapart made by RR.