The main attractions of Delhi are concentrated in three areas - Old Delhi, New Delhi , as well as South Delhi, known as the Qutb Minar (or Qutub Minar) or Mehrauli complex. Usually, Old Delhi is called Shahjahanabad, the district of the capital of Mughal rulers of the 17th century, located 5 km north of the center of Connaught Place, the modern business center of New Delhi. The Old Delhi there is a huge Lal Kila (Red Fort ) and Jama Masjid, the largest mosque in India, you can smell fragrances here, as well as all the other smells of real India. The adjoining areas of the Connaught Place are called New Delhi (New Delhi), they were built by British architects. The pearls of the "British Raj" are the architectural center around Rajpat and Rashtrapati Bhavan, where the official residence of the President of India is located.