Italy

The plaster was added to sections where the masonry was compromised.

Fir-veneer plywood wraps the entire interior of a compact guest cabin with a 12-by-15-foot footprint, smaller than a single-car garage.

Only 10 people live in the crumbling town of Civita di Bagnoregio, Italy. The Italian Villages project aims to revitalize rural ghost towns across the country. To ensure that funds are reinvested in the community, Airbnb does not take a commission on bookings of redeveloped buildings.

Perched in Sicily's Monte Cofano Nature Reserve, this one-bedroom home—which was once an agricultural storehouse—offers views of an unspoiled natural landscape, from the mountains to the sea. Original details, such as exposed beams and stone walls line the interiors, while a large, partially shaded patio extends the charm outside.

A cobblestone street in Sambuca, Sicily