Related by context. Frequent words. (Click for all words.) 77 elevator 60 escalators 51 upper floors 49 floors 48 escalator 47 hallways 45 buildings 45 bathrooms 45 air conditioning 44 balconies 44 walkways 43 doorways 43 dryers 43 parking garage 43 wheelchairs 43 trolleys 42 stairwell 42 cranes 41 air conditioners 41 stairs 41 trams 41 cabs 41 gondola 41 subways 41 subway 40 rooms 40 trains 40 carriages 40 atrium 40 sprinklers 40 restrooms 39 dorms 39 ceilings 39 vending machines 39 staircase 39 crane 39 buses 38 skyscrapers 38 tunnels 38 machines 38 carts 38 towers 37 trolley 37 entrances 37 hallway 37 residence halls 37 rooftop 37 cafeterias 37 taxis 37 stairway 37 Tower 37 toilets 37 wheelchair 37 tower 37 monorail 36 ventilation 36 building 36 air conditioned 36 corridors 36 skyscraper 36 refrigerators 36 ramps 36 scaffolding 35 lobbies 35 halls 35 midtown 35 pedestrians 35 parking lots 35 boilers 35 tractor trailers 35 apartments 35 kitchens 35 sprinkler system 35 floor 35 locomotives 35 lofts 35 intercom 35 dormitories 35 airplanes 35 generators 35 retrofitted 35 apartment complexes 35 garages 34 strollers 34 conveyor 34 tram 34 silos 34 Buildings 34 washing machines 34 fire extinguishers 34 concourse 34 commuter trains 34 telephones 34 basements 34 bicycles 34 barges 34 busses 34 lounges 34 bathroom 34 restroom 34 warehouses