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The Lost Temple of Hercules
In the 1800s, historian Carletti described the architecture
of the lost temple as "Doric order similar to the temples
of Pesto (Paestum)". He further noted the presence of a
marble statue representing Hercules leaning on a club draped
with the skin and head of a lion.
The cluster of structures includes a tholos that is connected
by a narrow corridor to a larger rectangular building. The tholos
has an inner diameter of 8 meters in a perfect circle.
A large slab of white marble remains cemented in place where
corridor ends in the rotunda. It would appear that the entire
circular floor was finished in white marble. Near the center
of the rotunda is a small base, still cemented to the concrete
The height of the Roman rotunda is the same as the diameter of
the cylinder. That means that the dome building would have stood
approximately 9 meters high, depending on the thickness of its
Only about 20 meters away, on the edge of what must have been
the ancient water's edge, a massive building foundation rests
in 4 meters of depth. This structure shows dimensions and architectural
features that only a very large, important building would have
had. The shape is long rectangular measuring about 50 meters
on the long side. This is the side that faces the bay.
There is a square projection of the foundation that extends 4.5
meters out from the leading edge. The floor exhibits collapsed
ducts, apparently built into the floor for allowing circulation
of water for heating or bathing. These appear as grooves and
20-30 centimeters in width.
The anchor found among the Bacoli ruins is apparently a limestone
monolith measuring 2 by .75 by .50 meters. A single round hole
with a diameter of
.25 meters is bored near one end.
It is this type of anchor that would be used to anchor a boat
in shallow water where the sea bottom is hard or rocky. Apparent
weight and dimensions of the Bacoli anchor suggest that it was
perhaps designed for a boat that would be at least 10 meters
long in order to carry this anchor load.
Also present in the marina basin is a string of mortar slabs
with arcuated ducts through them. The slabs are aligned in a
straight line between the temple ruins and the base of Cento