The Banská Štiavnica area is famous now for its unique hydro-system of artificial lakes - reservoirs. Its construction had begun in the early 16th century and lasted until the mid-19th century. The whole system consisted of 60 artificial lakes with the overall capacity of 7 million m³. The reservoirs were connected by ditches. Given the fact that the area of Banská Štiavnica never abounded in natural water resources, the ditches were very useful - they collected and kept snow and rain and the resulting water then accumulated in reservoirs. Through a different sort of ditches it flowed to mining machinery. Important investors and technology experts like Matej Kornel Hell, Jozef Karol Hell, but most of all the scientist Samuel Mikovíni contributed largely to the construction of this system. Nowadays there are 23 reservoirs preserved
Nám. sv. Trojice
It was built in the early 16th century and it forms the architectural heart of B. Štiavnica. Its shape had been determined mainly by the Town Hall and the Church of St. Catherine. It is lined by splendid houses that had been owned by rich burghers and mining entrepreneurs. In the middle of the square the eye of each visitor is caught by the stately Holy Trinity Column. It was built out of gratitude for the end of the plague which had troubled the town from 1710 to 1711. It used to be very simple - its current form is of later origin. It is the work of the famous sculptor Dionýz Stanetti. The structure is embellished by figures of seven saints - protectors of the town and patron - saints of miners.
Radnica
This house, built as a single floor building, dates back to the 14th century and it used to host the sessions of the town council. In the early 16th century the Chapel of St. Anne was pulled down to give way to the sculptural group of the Virgin. The Town Hall´s present aspect dates back to the period of 1787-88 when it was rebuilt. Int its celars, there used to be the town prison.
Klopačka
This tower-like building with Renaissance and Baroque features dates back to 1681. It contains a sound apparatus which used to remind the miners of the hour when they were to start work. Knocking was also used to announce various festive occasions, miners´meeting, funerals, even as a warning during fires. In the 18th century, the ground floor of this building was turned into a prison for miners convicted by the Mining Court.
Starý zámok
In the early 13th century a Romanesque basilica with three naves was built on a projection shooting off the Paradajz hill - the Church of Saint Mary. In the 15th century a wall was erected to protect the church and the cemetery next to it. In the 1540s the church was rebuilt so that it could function as a fortress against the Turkish raids. The vault above the main nave was pulled down - the present courtyard of the castle emerged. Later the walls were fortified. The building complex of the Old Castle includes also the Chapel of St. Michael. This Romanesque rotund building has two parts: the above-ground carnarium was used as a place where dead bodies were laid before burials, in the underground ossarium bones extracted from old graves were kept. There are interesting fragments of 14th century frescoes on the walls of the Chapel. The nearby "Himmelreich" bastion also dates back to the 14th century and it has a history of serving as a prison. There are expositions of sacral art, world famous tobacco pipes from Stiavnica, the craft of blacksmiths and baroque sculptures. (13th-18th century)
Štôlňa Glanzenberg
A mining tunnel. Guided tours only, reservation required.
Kostol sv. Kataríny
The late Gothic Church of St. Catherine was built in 1491. Its only nave is topped by a star-shaped vaulting. The nave is lined by lowerside chapels. In front of the Church there is a crypt where mayors and important burghers are buried. Since 1658 the Church of St. Catherine hosted Slovak preachers and was called "The Slovak Church".