An official memorial is planned for Havel on Wednesday at the castle.
An official memorial next to the hotel carpark bears testimony of the base's past existence.
The decision does mean that Philip's name can be added to official memorials to the victims.
In August, the nation's first official memorial to its Holocaust victims was dedicated.
He plans to return it to Liberty Park, unless there is an official memorial at the trade center site.
Instead of a statue, the Truman Scholarship is the official federal memorial to its namesake president.
The county is still planning an official memorial; families of victims are being included in the process.
There are also official presidential memorials that have a living element with only a minor physical presence.
In 1971 his cemetery in Pasumpon was converted into an official memorial.
While not part of the official memorial they are open to the public.