• Up to 30 minutes on the deck with each ticket
• Shuts in bad weather: check the live open-or-closed status on the esmadrid page before you go
• Next door to Museo de América, so the two fit into one morning

A 110-meter lighting tower built in 1992, where a glass elevator climbs 92 meters to an enclosed viewing deck. From the windows, kids can pick out the Royal Palace, the Almudena Cathedral, the Four Towers, and the Guadarrama mountains. A rail around the deck holds scale models of 51 buildings in view, with facts in Spanish and English.