The Lighthouse of LOCATION@1 -LRB- or The Pharos of LOCATION@1 , MISC@1 : -RRB- was a tower built in the 3rd century BC -LRB- between NUMBER@1 and NUMBER@2 BC -RRB- on the island of Pharos in LOCATION@1 , LOCATION@2 to serve as that port 's landmark , and later , its lighthouse .

It was built on the island of Pharos in LOCATION@1 , LOCATION@2 to serve as the port 's landmark , and later , its lighthouse .
