Western Wall Tunnel
British researchers started excavating the Western Wall in the 19th century. Charles Wilson began the excavations in 1864. This was followed by Charles Warren in 1867 - 70. Wilson found an arch. This arch is now named for him, "Wilson's Arch". It was  wide. The arch is above present-day ground level. It is believed that the arch supported a bridge which connected the Temple Mount to the city during the Second Temple Period.