There are plenty of observatories all over the world, but the Jantar Mantar is considered to be one of the largest observatories ever built. Combining religion, science and art, the Jantar Mantar is the name given to a series of five, magnificent structures built in Jaipur, New Delhi, Ujjan, Varanasi and Mathura. Jaipur was the seat of Maharaja Jai Singh II in 1728 and this is when this magnificent structure was built here. The Jantar Mantar in Jaipur is considered to be the largest of the five observatories and also houses the world's largest sundial, The Samrat Yantra. The Universe and the Cosmos have always been of interest to man, and it was this interest that compelled the Maharaja to build an astronomical observatory. The term 'Jantar Mantar' is derived from the Sanskrit terms 'Yantra' and 'Mantra' meaning 'instruments' and 'formula' respectively. The term 'Yantra' was replaced with 'Jantar' which means 'magical'. The Jantar Mantar houses various architectural and astrological instruments that have caught the interests of astronomers, historians and architects around the world.
Next on the tour, located in the heart of the Pink City Jaipur, the City Palace was where the Maharaja reigned from. This palace also includes the famous 'Chandra Mahal' and 'Mubarak Mahal', and other buildings which form a part of the palace complex. The palace is located towards the northeast side Jaipur. The palace was built between 1729 and 1732 by Sawai Jai Singh II. He ruled in Amer and planned and built the outer walls of the palace and later rulers added to the architecture of this palace. These additions have been known to take place right up to the 20th century. The architectural styles are largely based on a fusion of Rajput, Mughal and European styles. Today, the 'Chandra Mahal' has been turned into a museum, which has grand collection displaying miniature paintings, costumes and armory of the heritage of City Palace.