The observation deck atop the skyscraper, dubbed "Top of the Rock", is built to resemble the deck of an ocean liner. It offers sightseers a bird's eye view of the city, competing with the 86th-floor observatory of the Empire State Building 200 feet (61 m) higher. It is often considered the best panoramic city view, mainly because it offers a far-away view of the Empire State Building. The timed entry system and larger observation deck also results in shorter waiting times compared to the Empire State. The frameless safety glass around the perimeter of the deck dates to 2005, when the facility reopened to the public. In the renovation by Gabellini Sheppard Associates, the original limestone and cast aluminum architectural details were conserved and new interiors were added.