Qutub Minar ,  Purana Quila ,  Lodhi Gardens ,  Jama Masjid ,  Humayun's tomb ,  Red Fort , and  Safdarjung's Tomb . Modern monuments include  Jantar Mantar ,  India Gate ,  Rashtrapati Bhavan ,  Laxminarayan Temple ,  Lotus temple  and  Akshardham Temple . New Delhi  is famous for its British colonial architecture,