- Agra is among the two cities of India that holds three UNESCO World Heritage Sites. The sites are Agra Fort, Taj Mahal, and Fatehpur Sikri.
- Agra Fort is featured in the episode of the famous Sherlock Holmes mystery.
- The Kheria Air Force station in Agra is one of the major Air defence Station in India.
- The zenith of IT outsourcing of India, Patni Computer System was from Agra.
- Agra is the birth place of the renowned poet Mirza Ghalib.
- Taj Mahal appears pink in the morning, white in the daylight and golden under moonlight.
- Agra has the world’s largest sloth bear rescue facility which is called the Agra Bear Rescue Facility.
- Delhi has the largest transportation system in India currently.
- Dedicated to the history of sanitization, Delhi has an International Toilet Museum which is taken care of by Sulabh International.
- 20% of the land in Delhi is covered by forests.
- There exists a difference in Delhi and New Delhi: New Delhi is the capital, which is a territory in Delhi.
- Delhi is known to be most bird-rich city after Nairobi.
- Delhi has the iron pillar situated in the centre of Qutub Minar which is resistant to rust
- Delhi is situated on the banks of River Yamuna.
- Delhi showcases the rail heritage through the National Rail Museum which is located in Chanakyapuri.
- Akshardham Temple in Delhi holds the Guinness world record for ‘World’s Largest Comprehensive Hindu Temple’.
- Delhi has its hands on the second oldest international cricket stadium, Feroz Shah Kotla, after Eden Gardens in Kolkata.
- Khari Baoli spice market in Delhi is the largest wholesale spice market of Asia.
- Azadpur Market in Delhi is known to be the largest fruits and vegetable market in Asia.
- The Lotus Temple in Delhi has bagged the International Prestigious Award and, the masterpiece has its petals made with white marble.
- The world’s largest free literary festival is organized in Jaipur.
- Jawahar Circle is the biggest circular park in India.
- The direction of each street market is either east to west or north to south.
- The Jantar Mantar in Jaipur has 19 astronomical units of different sizes.
- The Sawai Man Singh stadium has a seating capacity of 30,000 people, and it has hosted various national and international cricket matches in the past.
- Hawa Mahal stands at the centre of Jaipur.
- The Amber Fort which is located 11 kilometers from the city is made of red and white sandstone.
- Jaipur is the hub of intricate jewellery and handicrafts.
- The city is represented in Indian Premier League by the team Rajasthan Royals.