Viroth's Hotel, in the centre of Siem Reap, in the vibrant Wat Bo area, boasts 50's-inspired contemporary design, complemented by large green areas and vertical gardens, 35 super stylish guestrooms, a 20-metre pool, spa, gym and open air poolside restaurant.

The awards are decided by an algorithm that analyses the millions of reviews and opinions collected in a single year from TripAdvisor travellers worldwide.

The hotel in the north west of Cambodia has had 910 reviews, with 95 per cent of them 'excellent' and none ranking it below average.

TripAdvisor user Ruhong from Singapore said: 'Chic interior design and well maintained, including the black vintage Mercedes limousine that ferried us for the airport transfer. Courteous and friendly staff conversant in English. WiFi faster than expected. Centrally located in the heart of town, 25 minutes from the airport. Highly recommended.'

Another guest said: 'Viroths hotel is an oasis of peace and quiet in the hustle and bustle of Siem Reap.

The staff are amazing, nothing is too much trouble. This boutique hotel is beautiful and immaculate throughout, I’ve never stayed in such a clean hotel.'

While another customer wrote: 'Beautiful boutique hotel, lovely spacious rooms, attentive staff, great food, Spa was excellent & perfect location, what more could you ask for?'

Meanwhile, the Old School Bed & Breakfast in the Cotswolds has been named the best in Europe while the Tavistock House Hotel in Devon takes the title of Europe's best small hotel.