A sign close to the entrance of Jantar Mantar, this site consists of 13 architectural astronomy instruments

A sign close to the entrance of Jantar Mantar, this site consists of 13 architectural astronomy instruments

Jantar Mantar is located in the modern city of New Delhi, not far from famous Connaught Place

Jantar Mantar is located in the modern city of New Delhi, not far from famous Connaught Place

Jantar Mantar was built by Maharaja Jai Singh II in the 18th century

Jantar Mantar was built by Maharaja Jai Singh II in the 18th century

Misra Yantra is composed of five different instruments, it was constructed by Maharaja Madho Singh (son of Maharaja Jai Singh II)

Misra Yantra is composed of five different instruments, it was constructed by Maharaja Madho Singh (son of Maharaja Jai Singh II)

Different parts of Misra Yantra were used in calculating different aspects of celestial objects and time

Different parts of Misra Yantra were used in calculating different aspects of celestial objects and time

Looking back at the boundary wall of Jantar Mantar with the tall buildings of New Delhi in the background

Looking back at the boundary wall of Jantar Mantar with the tall buildings of New Delhi in the background

The five component of Misra Yantra are the Dakshinottara Bhitti, Samrat, Niyat Chakra, Karka Rasivalaya, and the Western Quadrant

The five component of Misra Yantra are the Dakshinottara Bhitti, Samrat, Niyat Chakra, Karka Rasivalaya, and the Western Quadrant

The Samrat Yantra or the King of Instruments is the largest and most imposing of the yantras in Jantar Mantar

The Samrat Yantra or the King of Instruments is the largest and most imposing of the yantras in Jantar Mantar

This high precision instrument is flanked by two towers on each side

This high precision instrument is flanked by two towers on each side

This is the western tower of Samrat Yantra

This is the western tower of Samrat Yantra

Eastern tower of the Samrat Yantra

Eastern tower of the Samrat Yantra

Samrat Yantra was used to measure the solar time of the local time of a place and also the declination

Samrat Yantra was used to measure the solar time of the local time of a place and also the declination

It is 70 feet high, 114 feet long at the base, and 10 feet thick

It is 70 feet high, 114 feet long at the base, and 10 feet thick

This yantra consists of inclined wall parallel to Earth's axis, flanked by two semi circular quadrants

This yantra consists of inclined wall parallel to Earth's axis, flanked by two semi circular quadrants

The surfaces of these instruments are marked with the scales

The surfaces of these instruments are marked with the scales

The quadrants represent the plane of the Equator and are marked in hours, degrees and minutes

The quadrants represent the plane of the Equator and are marked in hours, degrees and minutes

The time at a given moment can be read by the shadows of the inclined wall or gnomon on the quadrants

The time at a given moment can be read by the shadows of the inclined wall or gnomon on the quadrants

The Gnomon points towards the North Pole and makes an angle of 2837 with the horizon

The Gnomon points towards the North Pole and makes an angle of 2837 with the horizon

There is a chamber (yantra) in the eastern quadrant, it is called Shashthamsa Yantra

There is a chamber (yantra) in the eastern quadrant, it is called Shashthamsa Yantra

This site was restored in 1910 by Maharaja Rajinder Sri Sawai Madho Singhji Bahadur

This site was restored in 1910 by Maharaja Rajinder Sri Sawai Madho Singhji Bahadur

Jantar Mantar is a small but well kept site in the heart of New Delhi

Jantar Mantar is a small but well kept site in the heart of New Delhi

If offers it's visitors a much needed respite from the hustle and bustle of the city

If offers it's visitors a much needed respite from the hustle and bustle of the city

In this photo, Jayaprakash Yantra and Ram Yantra can be seen

In this photo, Jayaprakash Yantra and Ram Yantra can be seen

The word Jaiprakash means Light of Jai and it is named after Maharaja Jai Singh II

The word Jaiprakash means Light of Jai and it is named after Maharaja Jai Singh II

Diameter of this hollowed out instrument is 6.33m

Diameter of this hollowed out instrument is 6.33m

It was used to measure the co-ordinates of a celestial, local time and other zodiac observations

It was used to measure the co-ordinates of a celestial, local time and other zodiac observations

It is believed that this instrument was also used for both day and night observations

It is believed that this instrument was also used for both day and night observations

Graffiti on one of the buildings

Graffiti on one of the buildings

Some people just don't finsih with the names they make sure it is done properly (very sad)

Some people just don't finsih with the names they make sure it is done properly (very sad)

These steps are part of Shashthamsa Yantra which was used to measure the declination, zenith distance and the diameter of the sun

These steps are part of Shashthamsa Yantra which was used to measure the declination, zenith distance and the diameter of the sun

There are two Rama Yantras instruments inside the Jantar Mantar, this photo shows the one on the northern side

There are two Rama Yantras instruments inside the Jantar Mantar, this photo shows the one on the northern side

The floor and interior surface of the walls are inscribed with scales indicating angles of altitude and azimuth

The floor and interior surface of the walls are inscribed with scales indicating angles of altitude and azimuth

The Rama Yantra consists of a pair of cylindrical structures, open to the sky, each with a pillar or pole at the center

The Rama Yantra consists of a pair of cylindrical structures, open to the sky, each with a pillar or pole at the center

Looking at the pole which stands in the middle of Rama Yantra

Looking at the pole which stands in the middle of Rama Yantra

Access to this building is prohibited I managed to get this photo through one of its arches

Access to this building is prohibited I managed to get this photo through one of its arches

Exterior of the Rama Yantra (the one on the northern side)

Exterior of the Rama Yantra (the one on the northern side)

To the south, there is second Rama Yantra - at first they appears to be like twins but they are not

To the south, there is second Rama Yantra - at first they appears to be like twins but they are not

Entrance of the southern Rama Yantra

Entrance of the southern Rama Yantra

A closer look at the rope which was used to stop people from going inside the structure

A closer look at the rope which was used to stop people from going inside the structure

The main purpose of the Jantar Mantars was astronomy and astrology but now it attracts tourists due to its unique buildings and their functions

The main purpose of the Jantar Mantars was astronomy and astrology but now it attracts tourists due to its unique buildings and their functions