A B&B in Bologna, Italy, that makes you feel at home

Even our cabdriver, slowing down at the curb, isn't sure of the address here in the center of historic Bologna, Italy. He frowns impatiently, but sees only the busy intersection, a row of nondescript office buildings and a plain brown door.

He squints, then takes off his sunglasses. "There, you see?" he says finally, pointing at a number on the door. "Is that it?"

"Where?" we say, unwilling to be dumped on the sidewalk with our luggage until we're sure this unlikely looking corner is our destination, the Bijoux di Penelope B&B.

Five minutes later we step out of a tiny elevator into a dimly lit hallway where the owner, Penelope Venturi, is waiting, brown hair falling over her shoulders. Welcoming us, she opens the inner door into a sunlit apartment with four bedrooms and a kitchen stocked with food.

One of the bedrooms — the white and red "rubino" (ruby) room with a balcony looking over Bologna's red-tiled rooftops — will be our home for the next few days. It's bright, it's private and it's secluded. This B&B, Italian style, is not your typical hotel.

Back in the day, travelers who could afford tours of Europe's historic cities booked rooms in a hotel with bellboys, daily maid service and a restaurant and bar. In our Internet-connected world, nothing says "tourism is king" like the myriad lodging options that have been revolutionizing where we go and with whom we bed down for the night.

Ask a Facebook "friend" for hotel recommendations — as I did — and prepare to be overwhelmed by suggestions. Never, it seems, have there been so many willing homeowners eager to rent you a room. Hotels, accustomed to competing with one another, now have to contend with Airbnb, Vacation Homes for Rent by Owner, Home Exchange and B&B associations.

"The Bijoux di Penelope isn't Bologna's only B&B," said Denise Clarke, a spokeswoman for B&B associations in Europe. "Believe it or not, there are 1,100 B&Bs in Italy, 37 of them in Bologna alone. And they come in all price ranges and styles."

It was easy to plan a trip to Italy, when all I had to do was click through various websites and compare the information provided, including photos of the room, a locator map, the address, the owner's name and a short bio.

Reading them was an eye-opener.

One owner, apparently renting out his grown son's vacated bedroom (still decorated with sports posters), promised a casual atmosphere and free use of the living room. Another couple said they were hoping to buy the condo they were renting, and in the meantime were repurposing the den to save for the down payment.

The biggest risk in booking with a private owner is that you can't see what you're getting. Any room can be temporarily staged for a photo shoot by adding fresh flowers, grandma's antique quilts and oil paintings.

But our room was so tiny that the bed and a small TV took up most of the floor space. We couldn't open our suitcases without putting them on the bed. The air conditioning didn't work, though the July temperatures were 90 outside and hotter inside. We never met the owner, who repeatedly promised to repair the air conditioning; the on-site "host" was a recently arrived Filipino immigrant with limited English. The "breakfast" was a pot of tea, powdered orange juice and dry rolls.

In contrast, the Bijoux di Penelope, in Bologna, a member of the B&B association in Italy, made our stay a delight. Venturi, who had greeted us in person, recommended restaurants, gave us her direct phone number and provided brochures and a city map. She pointed the way to the city center, showed us where the bus stop was and suggested her favorite cheese shop. Without her advice, we might have missed many of Bologna's oldest and most beautiful churches and the university, said to be Europe's oldest.

The outdoor market and the cheese and bakeries nearby revealed why Italy's local produce is among Europe's best.

When we first looked at the photos Venturi posted on the website, we got the wrong impression. The Ruby Room, decorated with red and white lace cushions and red bric-a-brac, looked like a young girl's room. But when we met Venturi, who explained that she was a gemologist, we realized that she themed her rooms after her favorite gems: red for rubies, blue for sapphires and green for emeralds.

"Making the Bijoux more beautiful is my hobby, my passion," she told us.

The best feature was the windows, on two sides and with a sliding door to a balcony overlooking one of the few places where Bologna's ancient river is visible above ground. Sitting outside we could see over the rooftops to the city's two towers, and directly across the way into lush roof gardens and open balconies.

It was quiet and peaceful, a slice of what it might be like to spend two weeks in Bologna. Or even three.