original: notably absent from the city are fortifications and military structures .
simplifications: notably absent from the city are fortifications and military structures . notably absent from the city are fortifications and military structures . the city does not have fortifications or military structures . notably absent from the city are fortifications and military structures . notably absent from the city are barriers and military structures . there no forts or military structures in the city . some things important missing from the city are protective buildings and military buildings . especially or famously absent from the city are strengthenings and military structures .