Spongebob
SpongeBob achieves remarkable visibility through deliberate broadcasting across over 170 countries and territories. The character has appeared on clothing, lunchboxes, theme park attractions, and a Broadway musical. His distinctive yellow colouration and square physique register instantly in the human visual cortex. However, visibility requires access to media infrastructure, electricity, and the leisure time to consume entertainment content. Approximately 40 percent of the global population has encountered SpongeBob through some medium, a remarkable achievement for a fictional kitchen sponge.
The Moon
The Moon presents itself to every human with functioning eyesight and access to an unobstructed sky, requiring neither electricity nor cultural context to observe. It illuminates nights sufficiently for travel and outdoor activity, having served as humanity's primary nocturnal light source for most of history. The Moon has been visible to every human who has ever lived, from the earliest Homo sapiens to astronauts observing it from low Earth orbit. Its visibility transcends technology, infrastructure, and cultural barriers entirely.