Sirolo is a restored medieval village. The narrow alleys, filled with shops and restaurants, are only accessible by foot. Within ten minutes of Sirolo you can reach the most beautiful beaches in the region or go walking/hiking/biking in the Conero National Park.
For details on Sirolo, its beaches and other sites of interest please look here - https://www.italia.it/en/marche/sirolo/
Other places of interest close to Sirolo include
The Sanctuary of Loreto (15 minute drive) - beautiful cathedral city with Santa Casa, house from Nazareth where Virgin Mary was born: https://www.italia.it/en/marche/things-to-do/sanctuary-of-loreto
For the archaeologist people you can have a look into Grotte (caves) di Frasassi: https://www.frasassi.com/
If you are into Ninja Turtles or (oil) painting you can see where it all started centuries ago here at the museum and house of famous Raffaello: https://www.casaraffaello.com/ but you need a bit of driving and spoiler alerts there are no turtles there!
For people of great knight Templar lineage they can go a see a sword fight in Offagna usually last week of July: https://www.visitoffagna.it/feste-medievali/
If you have been following Eurovision and wonder how San Marino looks like you can check their singing skills 3 hours up north here: https://www.visitsanmarino.com/
If you are driving and hoping to see more of the wider Le Marche region, information can be found on these sites: https://letsmarche.it/