Petřín Lookout Tower was built within the Anniversary Exhibition of 1891 as a free copy of the Eiffel Tower of Paris. Its foundations are 11 metres deep, it is 63.5 metres tall and weighs 175 tonnes. The core of the construction is formed by an octagonal tube, which includes a lift, and there are two spiral staircases with 299 steps – one is intended for going up and one for going down. The lookout tower has two lookout platforms, the lower one in the height of 20 metres, the upper one at 55 metres.
Its base is situated in the altitude of 324 metres in the garden called By the Lookout Tower on the peak of Petřín Hill in the Lesser Town, Prague 1.
Besides the view of the skyline of Prague including the nearby Prague Castle, the lookout tower offers a distant view of Bohemia when the weather is clear. In the north you can see Říp Mountain and the Central Bohemian Uplands, in the north-east you can see the Giant Mountains massif. The view of the south-east is quite limited as it is closed by the Brdy Hills.
In the lookout tower basement there are several boards that map the history of the lookout tower as well as the history of the Czech Tourist Club.