International hotel booking website Hotel.info dished the dirt on the world’s cleanest — and filthiest — cities for an overnight stay in a new report.

Two million customers were surveyed, with those who stayed in Brisbane the happiest about the state of their rooms. It scored a rating of 8.3 out of 10 on the cleanliness scale.

Scroll down for a list of the world’s dirtiest hotels

Sydney came in next with a rating of 8.2, followed by Melbourne at 8.1. Other Australian cities didn’t receive enough reviews to be included in the list.

But it seems we still have a way to go, with none of these scores good enough to make it into Hotel.info’s list of the world’s 10 cleanest hotels, which consisted of:

1. Tokyo, Japan: 8.93

2. Warsaw, Poland: 8.76

3. Seoul, South Korea: 8.73

4. Bratislava, Slovakia: 8.54

5. Sofia, Bulgaria: 8.54

6. Moscow, Russia: 8.45

7. Lisbon, Portugal: 8.41

8. Helsinki, Finland: 8.40

9. Bangkok, Thailand: 8.36

10. Berne, Switzerland: 8.35

Hotels in Tokyo and Warsaw are so clean that guests “can eat their food from the floor”, according to the Hotel.info report. Though obviously we don’t recommend doing that!

This Tokyo hotel room looks pretty clean to us! Picture: Matt at PEK Source: Flickr

The 10 dirtiest cities:

1. Rio de Janeiro, Brazil: 7.29

2. London, UK: 7.52

3. Oslo, Norway: 7.53

4. Amsterdam, the Netherlands: 7.58

5. Copenhagen, Denmark: 7.60

6. Paris, France: 7.63

7. Athens, Greece: 7.68

8. Sao Paulo, Brazil: 7.69

9. Brussels, Belgium: 7.71

10. Kiev, Ukraine: 7.71

Rio de Janeiro, Brazil. Source: News Limited

So what should you do if you find yourself in a grotty room?

According to Ralf Priemer from Hotel.info: “Should the room occupant actually find lipstick on the pillow or dirty mirrors in the bathroom and only risk using the shower with their shoes on, then the first step is to speak with the hotel staff or the local representative of their tour operator. The traveller should remain polite but firm and request that the shortcomings be corrected immediately or that they be permitted to move to another room.

“Most importantly the complaint should be made at once and to the relevant person. If the inadequacies cannot be corrected locally and the dispute cannot be resolved the complaint should be made in writing and accompanied with photographs.“

Source: News.com.au - 4th September 2014