Preliminary comments here - more later. The photos are in chronological order.

Carol at St Marks Square, Venice; cool weather, lots of pigeons!

Carol and Venice Canal; St. Marks Cathedral is in the background.

On a gondola in Venice; note the gondolier wearing a parka, baseball cap, and talking on a cell phone- not the image you normally associate with Venice!
The other couple looking at the camera are Wayne and Carol Bohling, distant cousins (likely) from Nebraska. What a coincidence, meeting them in Italy!

Don and Carol in the town of San Gimignano, in Tuscany.

Don at Arcetri Observatory, overlooking Florence, after a tour of Galileo's home.

Don and Carol on the Amalfi Coast, near Positano

Carol at small department store in Sorrento; the only rubber stamps she found in Italy!

Carol at the Ruins of Pompei

Don at Pompei

Carol stepping across Pompei street; note the large stepping stones, designed by the Romans for bad weather and dirty roads.

Carol at the Roman Coloseum

Don and Carol at the Roman Coloseum

Carol throwing a coin into the Trevi Fountain; one coin means you will return to Rome!