city walls of Old San Juan

GPTKB entity

Predicate	Object
gptkbp:instanceOf	gptkb:historic_site
gptkbp:associatedWith	gptkb:Castillo_San_Cristóbal gptkb:Castillo_San_Felipe_del_Morro
gptkbp:builtBy	Spanish colonial authorities
gptkbp:constructionStartYear	1539
gptkbp:demolished	southern wall (in 1897)
gptkbp:feature	forts bastions gates
gptkbp:height	up to 42 feet
gptkbp:heritageDesignation	gptkb:National_Historic_Landmark gptkb:UNESCO_World_Heritage_Site
gptkbp:length	about 3 miles (originally)
gptkbp:location	gptkb:Puerto_Rico gptkb:San_Juan gptkb:Old_San_Juan
gptkbp:managedBy	gptkb:U.S._National_Park_Service
gptkbp:material	masonry
gptkbp:notableFor	gptkb:Puerta_de_Tierra gptkb:Puerta_de_San_Juan
gptkbp:partOf	gptkb:San_Juan_National_Historic_Site
gptkbp:purpose	defense
gptkbp:significance	protected San Juan from attacks
gptkbp:status	partially preserved
gptkbp:thickness	up to 45 feet
gptkbp:touristAttraction	yes
gptkbp:UNESCOWorldHeritageSite	gptkb:San_Juan_National_Historic_Site
gptkbp:bfsParent	gptkb:Paseo_del_Morro
gptkbp:bfsLayer	7
https://www.w3.org/2000/01/rdf-schema#label	city walls of Old San Juan