Although most of the space in the World Trade Center complex was off-limits to the public, the South Tower featured a public observation deck on the 107th floor called Top of the World. After paying an entrance fee, visitors were required to pass through security checks added after the 1993 World Trade Center bombing. They were then sent to the 107th-floor indoor observatory at a height of by a dedicated express elevator. The exterior columns were narrowed to allow 28 inches of window width between them. The Port Authority renovated the observatory in 1995, then leased it to Ogden Entertainment to operate. Attractions added to the observation deck included a theater showing a film of a helicopter tour around the city. The 107th-floor also featured a subway themed food court that featured Sbarro and Nathan's Famous Hot Dogs. Weather permitting, visitors could ride two short escalators up from the 107th-floor viewing area to an outdoor platform at a height of . On a clear day, visitors could see up to . An anti-suicide fence was placed on the roof itself, with the viewing platform set back and elevated above it, requiring only an ordinary railing. This left the view unobstructed, unlike the observation deck of the Empire State Building.