Over the past several years, excavations beneath Cardiff's Trelai Park, a popular spot for sports and recreation, have unveiled thousands of years of local history. The site is close to the Iron Age Caerau hillfort as well as an extensive Roman-era villa. Last year, archaeological work in the park uncovered traces of a Bronze Age roundhouse dating back to 1500 b.c., believed to be the oldest recorded dwelling in Cardiff. BBC News reports that archaeologists from Caerau and Ely Rediscovering Heritage Project (CAER) recently discovered another Bronze Age structure, a timber circle, and burial ground containing pits with cremated human...