Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: Spicer & Oppenheim sun yarda su yi hayar kashi 14 cikin dari na sararin samaniya, amma fiye da shekara guda, kamar yadda Black Monday da sauran abubuwan da suka shafi mummunan tasirin kasuwar ƙasa ta Lower Manhattan, Silverstein bai iya samun masu haya ba don sauran sararin samaniya. A watan Afrilu na 1988, ya rage kudin haya kuma ya yi wasu abubuwan da suka dace. A watan Nuwamba na 1988, Salomon Brothers ya janye daga shirye-shiryen gina wani babban sabon hadaddun a Columbus Circle a Midtown, kuma ya amince da kwangilar shekaru 20 don saman 19 na 7 World Trade Center. An gyara ginin sosai a cikin 1989 don biyan bukatun Salomon Brothers. Wannan ya haifar da madadin sunan ginin a matsayin ginin Salomon Brothers. An cire yawancin bene uku na yanzu yayin da masu haya suka ci gaba da zama a wasu bene, kuma an ƙara fiye da tan 350 (U.S.) na ƙarfe don gina bene uku na cinikayya mai tsayi biyu. An shigar da janareto na dizal tara a hawa na 5 a matsayin wani ɓangare na tashar wutar lantarki ta baya. "Ainihin, Salomon yana gina gini a cikin gini <unk> kuma gini ne da aka mamaye, wanda ke rikitar da lamarin", in ji wani manajan gundumar Silverstein Properties. Aikin da ba a saba da shi ba ya yiwu, in ji Larry Silverstein, saboda an tsara shi don ba da damar "duka sassan bene da za a cire ba tare da shafar ginin ginin ba, a kan zaton cewa wani na iya buƙatar hawa biyu".A lokacin hare-haren Satumba 11, 2001, Salomon Smith Barney ya kasance mafi girma a cikin 7 World Trade Center, yana da 1,202,900 sq ft (111,750 m2) (64 bisa dari na ginin) wanda ya haɗa da benaye 28<unk>45. Sauran manyan masu haya sun haɗa da ITT Hartford Insurance Group (122,590 sq ft / 11,400 m2), American Express Bank International (106,117 sq ft / 9,900 m2), Standard Chartered Bank (111,398 sq ft / 10,350 m2), da kuma Hukumar Tsaro da Musayar (106,117 sq ft / 9,850 m2). Ƙananan masu haya sun haɗa da Hukumar Kula da Haraji ta Cikin Gida (90,430 sq ft / 8,400 m2) da kuma Ma'aikatar Tsaro ta Amurka (85,343 sq ft / 7,900 m2). A cikin...  Tambaya: Yaya yawan ƙarfe aka ƙara wa ginin?
350 ton