[1] The two observation platforms are accessible via 299 stairs in sections of 13 per flight running around the inside of the structure.
A pair of staircases form a double-helix structure allowing visitors travelling up and down concurrently.
In 1889, members of the Club of Czech Tourists visited the world exposition in Paris and were inspired by the Eiffel Tower.
They collected a sufficient amount of money and in March 1891 the building of the tower started for the World's Jubilee Exhibition.
In 1953, a television transmitter was set up in the tower and the lift was removed, the tube was filled with cables and power supply.