A hallucination is a perception in the absence of external stimulus that has qualities of real perception. Hallucinations are vivid, substantial, and are perceived to be located in external objective space.
Construction begins on Poland's tallest tower by Foster + Partners. Work has started on a 310-metre-high Warsaw skyscraper by Foster + Partners, expected to become the tallest building in Poland. The Varso Tower, or Warsaw Tower, is now under construction on a brownfield site next to the Warszawa Centralna railway station, with completion slated for 2020.
In 1996, after the spires had been attached to the buildings (and each had thus reached its full height), the Petronas Twin Towers were declared the worldâs tallest buildings, eclipsing the former record holder, the 110-story Sears (now Willis) Tower in Chicago.