Although the Petronas Towers are taller, the 421m Menara KL, rising from the crest of Bukit Nanas, offers the best city views. Surrounded by a pocket of primary rainforest, this lofty spire is the world's fourth-highest telecommunications tower. The bulb at the top (its shape inspired by a Malaysian spinning toy) contains a revolving restaurant, an interior observation deck at 276m and, most thrilling of all, an open deck at 300m, access to which is weather dependent.
A free shuttle bus runs from the gate on Jln Punchak, or you can walk up through the KL Forest Eco Park and its new canopy walkway.