You can eat and shop in and around the once-magnificent and heavily fortified Crusader city, with its enormous ramparts and cathedral.
( You ( ( can ( ( ( ( ( eat and ) shop ) ( ( ( in and ) around ) ( the ( ( ( once-magnificent and ) ( heavily fortified ) ) ( Crusader city ) ) ) ) ) , ) ( with ( its ( enormous ( ( ramparts and ) cathedral ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP You)) (VP (MD can) (VP (VB eat) (CC and) (VB shop) (PP (IN in) (CC and) (IN around) (NP (DT the) (ADJP (ADJP (JJ once-magnificent)) (CC and) (ADJP (RB heavily) (JJ fortified))) (NNP Crusader) (NN city))) (, ,) (PP (IN with) (NP (PRP$ its) (JJ enormous) (NNS ramparts) (CC and) (NN cathedral))))) (. .)))
The city's cathedral is the location of a large Sunday mass each week. 
( ( ( The ( city 's ) ) cathedral ) ( ( is ( ( the location ) ( of ( ( a ( large ( Sunday mass ) ) ) ( each week ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN city) (POS 's)) (NN cathedral)) (VP (VBZ is) (NP (NP (DT the) (NN location)) (PP (IN of) (NP (NP (DT a) (JJ large) (NNP Sunday) (NN mass)) (NP (DT each) (NN week)))))) (. .)))