In the big Letná park we find an old Neo-Renaissance carousel, which dates back to 1892.
The structure is a bit hidden, because it is located between the famous beer garden and the National Technical Museum, right behind the Letenský zámeček (the summer castle).

The carousel (kolotoč, in Czech) is the oldest attraction of its kind still in operation in Europe.

The wooden pavilion retains its original layout, constructed in the shape of a regular dodecahedron, with a diameter of 12 meters, with a pyramidal roof completed by 12 vaults and topped with a 7.7 meters cupola.

It was built by the master carpenter Matěj Bílek upon the design of Josef Nebeský and it stood initially in Vinohrady, Prague. It was moved to Letná later on.
Originally, it was powered by a single person, who continually walked in circles in the space underneath the floor, pushing against one of the frame braces.
When it was moved to Letná, the drive was replaced by a mechanical gear and in the 30s an electric motor was installed.
It is said that the carousel used to supply the nearby tram station until the 90s, when the line was then dismissed. In the proximity of the carousel you can still see a part of the tracks of the old tramway.

The interior of the carousel is almost the same as it was back then, except for the box orchestra and the bell which were stolen in 1994.
On the revolving floor there are around 20 horses of various sizes, so to carry both children and adults, and four tiny cars. The horses have a metal frame and carved wooden heads and legs, they are stuffed with straw and are covered with real horse skin. The mini cars are based on the models that were circulating in the 30s.
At the center of the carousel there is a rotating column guarded by three knights.

In November 1991 the carousel was registered as National Cultural Monument and has been protected since then.
In 1995 the first major restoration took place.
In 2004 the National Technical Museum bought the carousel and created a special fund to collect money to bring it back to its functional state.
Finally, the carousel reopened in July 2022 and operated every Friday, Saturday, Sunday and national holidays until the end of September.