5. Palacio Barolo, Argentina
This building was declared a national historic monument in 1997. Currently, the building has several travel agencies, a Spanish school for foreigners, a store that sells clothes for tango, offices and studios of architects, accountants, lawyers, etc.
6. Statue of Liberty, USA
The statue was administered by the United States Lighthouse Board until 1901 and then by the Department of War; since 1933 it has been maintained by the National Park Service. Public access to the balcony surrounding the torch has been barred for safety reasons since 1916.