Julius Caesar's villa at Baiae

[Imperial Dave]

https://www.labrujulaverde.com/en/2024/09/julius-caesars-villa-in-baiae-exceptional-mosaics-and-frescoes-painted-with-pigments-more-expensive-than-gold/

Nice...

[Erpingham]

I did have to look up bradyseism though.  Volcanic geology of South Italy is not going to be my Mastermind specialist subject, I'm afraid.