This structure stands here since the 7th century, that is more than 1300 years old! The amazing thing is that it is not a ruin nor rebuilt, but most of the structure is still original and it is still a completely functional building, serving as a shrine in Jerusalem. You can walk in today! However, only Muslims can pray there inside. Can you imagine a 1300 years old building in good order? It is known as "Jerusalem's most recognizable landmark"!