Prague, Czech Republic (explored)
View from Prague Petřín Lookout Tower
The Petřín Lookout Tower (Czech: Petřínská rozhledna) is a 63.5 metre high steel framework tower in Prague, which strongly resembles the Eiffel Tower. Although it is much shorter than the Eiffel Tower, it stands atop a sizable hill, Petřín, so the top is at a higher altitude than that of the Eiffel Tower. The Petřínská rozhledna was built in 1891 and was used as an observation tower as well as a transmission tower. Today the Petřínská rozhledna is a major tourist attraction. The hill is roughly a half-hour walk up paths that get quite slippery when it snows, and the tower is a shorter but fairly tiring climb; however, the hill is served by a frequent funicular and the tower has an elevator for disabled persons.
The two observation platforms are accessible via 299 stairs in sections of 13 per stage running around the inside of the structure. (Wiki)