every part of the world; all over the world
Used to refer to many different places across the globe, often in news, travel, or cultural contexts.
Unusual weather is being reported in various parts of the world.
This dish is eaten all over the world.
It's a festival that draws tourists from all over the world.
This event is held in various places around the world.
The news spread to every corner of the world.
世界中 treats the whole world as one unified space, while 世界各地 emphasizes many distinct locations scattered across the globe.
全世界 is a formal term for 'the entire world' used as a whole entity, whereas 世界各地 is used to describe scattered places within that world.
世界各国 specifically means 'countries around the world', while 世界各地 refers more broadly to places or regions, not limited to national units.
各地 means 'various places' within an implied or specified area (like a country), whereas 世界各地 explicitly limits that scope to the whole world.
Compound of 世界 (world) and 各地 (various places, every region).