absolutely stunned by these buildings lasting so long, and also the ingenuity and precision of the aqueducts, bath houses etc. saw a special one time on the history channel i believe. i'm one of those geeks who would love a themed tour of these in Italy, based on how they were engineered.
the talent and skill involved are amazing. kind of like accurate crimesolving before fingerprints, cell phones, computers, and dna
Been to a good number of places in europe and the far east and eastern australia (NSW & Brisbane). Best (JMO) Italy then Ireland. Wandered in Italy looking for bad wine and bad food. No luck. And Ireland to me is poetry and beauty.
There's just a mega ton of stuff we don't know about the universe: