It is situated in a marshy but highly productive district, near the left bank of the Danube River.
Amongst its buildings are a fine cathedral, the archiepiscopal palace, an astronomical observatory, a seminary for priests, and colleges for training teachers.
The residents of Kalocsa and its wide-spreading communal lands are chiefly employed in the cultivation of paprika, fruit, flax, hemp and cereals, in the capture of waterfowl and in fishing.
The Baroque provincial town in the Great Plain lies approximately 118 km (73 mi) south of Budapest on the east side of the Danube.
Later, along with Esztergom, Kalocsa was an archdiocese founded by King Stephen in the early years of the Hungarian state.
Another significant general was Pál Tomori (who was archbishop from 1523 till 1526), the leader of the Hungarian army against the Ottomans.
With people of the town dispersed, nobody cultivated the lands, and the archiepiscopal status lost its importance.
After the 148 years lasting rule, on 13 October 1686 the Turks burnt down the castle of Kalocsa and withdrew their troops.
Peace was delayed because of the uprising against the Habsburgs led by the Transylvanian Prince Ferenc Rákóczi II.
Two great archbishops of the second part of the 19th century (József Kunszt 1851–1866 and Lajos Haynald 1867–1891) founded schools, so Kalocsa kept its importance.
During World War II, the Germans required the deportation of all the Jewish people in the summer of 1944.
In June 2009 the city council organized two days of events to commemorate the Jews of Kalocsa and their deportation.
Today Kalocsa is considered a picturesque small town, most of whose residents work there or on nearby lands.
The fourth statue of the square depicts Ferenc Liszt, the great Hungarian composer, who visited the town several times and Lajos Haynald archbishop.
Another attraction of the town is the high building of the Archbishops Cathedral standing in the middle of the Holy Trinity Square.
One is a grave-stone cherishing the memory of the stonemason, Martinus Ravegu, and the other is a red marble king-head significant even in its fractions, being the most remarkable piece of sculpture from the age of the Árpáds (897–1301).
The second church was rebuilt in Romanesque style during the reign of Louis the Great and burnt down in 1602 by the Protestant Hungarian Haiducks.
In the middle of the century the Turkish traveller, Evlia Tshelebi saw the remains, the inner walls of which were decorated with "beautiful colour paintings".
Between them there is a connecting bridge on which are three statues: St Peter and Paul (1755) and in the middle Virgin Maria (János Hartmann, 1881).
The last two altars show St John of Nepomuk who kept the confessions in secret in front of the Czech king and Stephen I can be seen when he educates his son.
As it is true in general concerning the relics of the Hungarian art, it is valid in this case too: the catastrophes of history unsparingly annihilated our finest valuables.
Therefore, the bulk of the articles displayed are the product of the 18th and 19th century and only a very few works of art are from earlier times, as messengers of the former riches of the Hungarian Middle Ages and the Renaissance era.
A rare volume is the oldest Hungarian Bible-translation, called: Vizsolyi Bible from 1540 (translated by Gáspár Károlyi).
Its fire red colour, its capacity to redden dishes and its hot taste turned it to our national spice and an export article well known all over the world.
In the beginning it became known as an exotic plant brought from the New World but its ingestion soon became very popular and in the 19th century on it is important as a commercial article, too.
József Kunszt archbishop (1851–1866) called from Czech the sisters who had named themselves after Virgin Mary.
Going to the South from the Holy Trinity Square the visitor can see the statue of Pál Tomori (archbishop and general who died at the battle of Mohács against the Turks in 1526) behind the Prosecutor's Office of the Town.
Next to the statue we find the building of the Teachers' Training College, founded in 1856 by József Kunszt, which is working now as a secondary school for health workers.
The institute, named after a local ethnographer, is mainly devoted to portraying the life of the Swabian, Slovak, Serbian and Hungarian people of the region.
His metallic light tower, called Chronos 8, is standing at the far end of the main street, by the bus station.