Top cleanest cities in the world - Rajshahi Bangladesh

#1: RAJSHAHI

Then, all of a sudden, Rajshahi, Bangladesh, reached a watershed moment so dramatic that it earned a place in history: according to UN data, the town did more than any other in the world last year to rid itself of harmful air particles to human health.

#2: CALGARY

Calgary, Canada, is the cleanest city in the planet, and it has a population of over a million people. The government works hard to keep the city clean, but they do it by focusing on five primary areas: water quality and availability, sewage systems, traffic congestion, garbage collection and recycling, and air pollution.

#3: ZURICH

Thousands of tourists visit Zurich, Switzerland each year, particularly those who adore the winter snow. The city has a well-functioning waste management system, and recycling efforts are centered on repurposing products to reduce energy usage.

#4: LUXEMBOURG

Luxembourg is a small country that places a high value on keeping its city and capital clean. The capital is beautiful, and residents appear to understand that it is their responsibility to keep their city and country as clean as possible for everyone to enjoy.

#5: ADELAIDE

Adelaide, South Australia, has an exceptional waste recycling system that allows them to recycle approximately 85 percent of the city's waste. That is why it has such a high cleanliness rating.

#6: SINGAPORE

Singapore is Asia's cleanest city because it adheres to strict cleanliness standards. Spitting in public places is considered an offense, and the government may charge you for it.