More “long lost” settlements have been found across Wales as their outlines show as crop marks in the heatwave.
An unknown Celtic site has been discovered in the shadow of a castle ruin near Tywyn, Gwynedd, according to aerial archaeologist Toby Driver.
Prehistoric settlements have also emerged in Monmouthshire along with a suspected Roman fortress.
“All around Wales we are adding in new bits of history,” said Mr Driver, who uses a light aircraft to find sites.
“Right across Wales we have got some stunning discoveries.
“It is a strange and exciting thing to see. It has been an incredible three weeks,” he told BBC Radio Wales’ Good Morning Wales programme.
The Royal Commission on the Ancient and Historical Monuments of Wales (RCAHMW) has released photographs from Mr Driver’s discoveries following flights from Haverfordwest Airport in Pembrokeshire.
In Gwynedd, an additional Celtic settlement has emerged on the valley floor between the castle ruins of Castell y Bere and hillfort Craig yr Aderyn.
“Nobody knew it was there,” said Mr Driver.
He found the outline of a suspected Roman watch tower on the nearby coast.
And in south Wales, a “new” Roman fortress and town between Caerwent and Caerleon has appeared in the dry conditions.