Where did the Water Go

Should be water around here somewhere 

The aqueduct, although not the water flowing through it, is easy to find.

This section of the Aqueduct is raised above ground level, with the nearly flat walking path next to it.

Looking back at Spello from along the Aqueduct trail

There are many "inspection" ports, presumably to allow for maintenance and proper water flow.  Bright red poppies are guarding many of them.

Looking downstream inside the now abandoned aqueduct.  Built by the Romans in 200ish A.D.  it was used as the water supply for Spello until 1944 when it was bombed by the allies in the war [reference].  The patches of light along the tunnel are from downstream inspection ports.

In Roman times, water would be pouring from this fellow's mouth