La Almoina Archaeological Museum

This guide to the La Almoina Archaeological Museum in Valencia opens in 1985, when workers extending the cathedral's basilica struck stone that shouldn't have been there and uncovered a Roman site beneath. Twenty years of digs followed, peeling back a bathhouse, a grain warehouse, a pottery kiln and Roman shops, then Visigothic and Muslim-era layers above them. You'll hear how a later charity gave the site the name it still carries. Look at the column bases underfoot; they once held up a Roman forum.