A direct reflection of Delhi's rich history is its magnificent monuments. Old Delhi has great architectural wonders, three declared as World Heritage Mounments, i.e. Qutub Minar
, Humanyun's Tomb
and Red Fort
(Lal Quila). Humayun's Tomb and the 72.5 meter tall Qutub Minar are architectural marvels in Delhi. Lal Quila which was built by great Mughal emperor Shah Jahan, and is surrounded by a wall of about 2.4 Kilometers in circumference and is built of red sandstone. The hand Jama Masjid is yet another architectural gift given to delhi by Shah Jahan. It is one of the largest mosques in India. The Akshardham Temple and Bahai Temple (Lotus Temple) attracts thousand of visitors daily. There are various monuments in Delhi that are reminiscent of the British colonial architecture. Some of these structures are Rashtrapati Bhavan
, the Secretariat, the Rajpath, and the Parliament of India. Other famous monuments include India's war memorial, the India Gate
, an 18th century astronomical observatory, the Jantar Mantar
and a 5th century BC fortress, the Purana Qila.