www.trekking-world.com not only provides information about treks around the world, but also lists different type of accommodations in the listed countries. 

The best way to find relevant guest houses is to either use the navigation menu on the left side to find the country, region or city/village of your choice or use the search box in the upper right corner by typing the country, region or city/village of your choice in combination with the type of accommodation you are looking for.
 
Below you can also find a list of guest houses in some of the most visited countries on this website:
 
Tibet
Nepal
India
Italy
Austria
Argentina
Germany
 

Trekkinghouse in the Italian alps in Piemonte, the northwest province boardering with France. the guesthouse is high up in the mountains, to be reached by an itinerary of 2,5 hours, for descriptions how to reach see website. Closed in winter, open frome april until september. Beautiful possibilities for alpinismo and skiing in spring until june

The Super view Lodge and Restaurant est. at 1995 it is in Sarangkot VDC ward no 3 At an altitude of 1592 meters, this mountain sits north of Pokhara overlooking the valley and Fewa Tal.
It is just 7 km away from, Pokhara and it is very close to the Sarangkot view point
This is a small hotel it is like cottage style, We run the business by our family we have only few Guest rooms and Restaurant you can come to Eat here Nepali and continental food.
The best part of super view we have really beautiful view from our beautiful garden. Early in the morning you can see the beautiful sunrise, golden color Mountain like Annapurna & Dhauligiri rang.
Also you can see beautiful Fewa lake, Pokhara city and many more green mountains.
And in the evening you will see a beautiful light of Pokhara city that’s made you really happy to be here
Also you can be with your friends & family through Wifi Hi Speed Wireless Internet connection

BACKspace resort is beautifully situated on the edge of the Sankhu valley. From the wooden porch by your cottage and between the rice and potato fields, you will be able to enjoy the breathtaking view of sumptuously green mountain slopes.

The resort lies a short distance of the historical village of Sankhu, 17 km east of Kathmandu. The old trade route between Kathmandu and Lhasa traverses the village and leaves behind centuries of history. Many hiking- and bicycle routes can be found through the surrounding mountains, leading you along age-old temples, holly places and astounding views.

Hut at 2200 near Les plans sur Bex and Pont de Nant. To be reached by trails from the Valleys of Conthey or Aigle.

The Park of Cavriglia is a natural park with a variegated fauna and flora: it’s possibile to meet moufflons, deers, roe deers, but also llamas.
The Park is crossed by numerous trekking paths: the most important among them is the path n° 00 of CAI which links Florence to Siena. The Ostello del campo sole (The Sun Field) is a simple hostel in a wood of pines and oaks, beautifully situated on the Monti del Chianti.
It offers 40 beds divided in 3 bungalows, each for 6 peoples, 1 bungalow for 11 peoples and 2 mobil-home, each for 5 peoples.

Hostal Yeti in the Sierra Nevada, really pretty and close to the ski lift. It is next to the church, in the zone of shops and restaurants. It is possible to make reservations for ski classes and ski rental material directly through the hostal.

The Hotel Refugio de Nevada, is situated in the village of Laroles and access gate to the "Puerto de la Ragua", a spot characterized by the surprising combination of snow and sun, resulting from its elevated height. Twelve comfortable rooms are available, all equipped with hot water, television and telephone.

Bed and Breakfast/accommodation for €27-32 per person per night (slightly more in high summer) in the guesthouse The Lemon House in Lotzorai, only 1,5 km from the sea, and free all the support to make the most of your holiday. They also offer self-catering accommodation in nearby Porto Frailis, Arbatax. Peter and Anne offer specialist support for cycling (road and mountain bike), walking and climbing from the our guesthouse The Lemon House in Ogliastra.

New Pokhara Lodge is situated in the heart of Pokhara's largest Lake Fewa. Sufficiently set back from the main road to guarantee peace quite & privacy, there are just 16 rooms all with attached tiled toilets and 24 hours hot and cold running water. The lodge built around one of the best gardens in Pokhara. All the rooms have wall to wall carpeting and are tastefully decorated. Each room is equipped with cable TV broadcasting more then 30

Hostal de Granados is located in the most convenient area of Buenos Aires. Many tourist attractions are within walking distance. San Telmo, the colonial neighborhood of Buenos Aires, is known for its flea market (2 blocks away), squares and parks (parque Lezama 5 blocks away, ecological reserve 6 blocks), Museum of Modern Art (5 blocks), old cafes. At night, the tango scene takes place in the surroundings.

Albergue & Backpackers' Hostel Condor de los Andes is a good budget choice in El Chalten. They offer all kinds of excursion, like trekking to Lago Torres, glacier Trekking, trips to Lago del Desierto and horse back riding.

Bed & Breakfast Villa Alberta is situated in the historical center of the splendid city of Pula to 200m from the public square centers of the country, where in summer, guest can find musical festivities, entertainment every day. The structure is distant 1.500m, from one of the best sea zone "Nora".

Sa Domu Cheta is located on the first floor of an elegant and historical palace of the 20th century. The structure is equipped of 5 rooms wise furnished, all with private bath, air conditioned, fridge, TV LCD with satellite connection, Internet connection.

Donna Pomptilla - A small accommodation in the center of Cagliari. It is an elegant place to stay in the capital of Sardinia.

All private and common rooms are tastefully furnished. The bedrooms have antique furniture and typical Sardinia textiles. An elegant lounge with fireplace as well as a small garden with lemon trees complete the comfortable atmosphere that you are looking for.