Answer: United Kingdom
Some extra relevant information:
The prime meridian, also known as the zero-degree longitude line, is an imaginary line that separates the eastern and western hemispheres of the Earth. It serves as a reference point for determining the time zones and geographic coordinates. The prime meridian passes through several countries, and those countries are:
1. United Kingdom: The Royal Observatory in Greenwich, London is the internationally recognized location of the prime meridian. It was established in 1884 during the International Meridian Conference.
So, to answer the question, the prime meridian passes through the United Kingdom, specifically the Royal Observatory in Greenwich, London. This significant line plays a crucial role in navigation, mapping, and timekeeping, serving as a reference point for many countries worldwide.