Question

Which place is at 0 degree longitude and 0 degree latitude?

Answer 1

the open ocean lies at zero degrees latitude and zero degrees longitude, marked by a weather observation buoy, part of the Prediction and Research Moored Array in the Atlantic, also known as PIRATA.

Answer 2

It requires a boat and a good navigator, so, unlike the prime meridian line in Greenwich, there is not much call for tourism at this location. The spot is marked, though: a weather buoy (Station 13010—Soul) is placed at the exact location of 0 degrees latitude, 0 degrees longitude.