I was surprised to see that Hotel Carter in New York is on the list. I once stayed there for a night and remember arriving at around 3:30 AM and going to sleep without turning the light on. Unless I was too tired to see cockroaches in the room, I found the hotel very convenient for the price I paid. Here are the top 10 dirtiest hotels as per tripadvisor.com.
1.Hotel Carter, New York City, U.S.
2.Hotel Merryl, Paris, France
3.Cromwell Crown, London, England
4.Ludwig Hotel, Munich, Germany
5.Catalonia Gardens, Salou, Spain
6.Centaur Hotel, IGI Airport, New Delhi, India
7.Hotel Nizza, Rome, Italy
8.First Hotel, Bangkok, Thailand