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observation tower
lifeguard tower
lookout tower
the observation deck
observation deck
watch tower
play tower
rotary elevator
radar equipment
fire tower
stiltsville
ormoc pier
aerial lift bridge
skywalks
skyrail
multiplane
skywalk
34 meters high
gangways
watchtowers
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observation tower
lifeguard tower
lookout tower
the observation deck
observation deck
watch tower
ormoc pier
radar equipment
aerial lift bridge
play tower
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lifeguard tower
lookout tower
observation tower
fire tower
watch tower
communications tower
watchtowers
antenna tower
play tower
radio tower
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lifeguard tower
observation tower
the observation deck
observation deck
aerial lift bridge
lookout tower
gantries
skywalks
skywalk
aerobridges
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radar equipment
bowsprit
live broadcast antenna
uscgc
boat yard
transmission mast
yacht exterior
windlass
antifouling
drydocked
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observation tower
spiral stairs
steel stairs
skybridge
spiral staircase
skywalks
lookout tower
skywalking
the observation deck
fire tower
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gantry crane
container crane
aerial lift bridge
rotary elevator
load crane
harbor crane
lookout tower
shipping crane
observation tower
loading crane
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fire tower
lookout tower
rotary elevator
uetliberg
gondola lift
cable cars
observation tower
tibidabo
watch tower
diving bell
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fire tower
lookout tower
watch tower
steel tower
observation tower
lifeguard tower
communications tower
antenna tower
transmitter
radio tower
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steel stairs
aerial lift bridge
conveyors
escalera
gangways
conveyor
escaleras
stairways
steel mill
trestle
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lifeguard tower
lookout tower
observation tower
watch tower
water tower
fire tower
bird tower
diving bell
play tower
wind powered water pump
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lifeguard tower
lookout tower
stilt house
observation tower
boatshed
wheelhouse
deckhouse
boat house
the observation deck
watch tower
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observation tower
lifeguard tower
lookout tower
watch tower
heavenly ladder
summit cross
wooden ladder
communications tower
north cape
watchtower
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trabocchi
lifeguard tower
fishing pier
gangways
shiplift
maunsell
stiltsville
aerial lift bridge
diving bell
cable railway
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rotary elevator
bucket wheel excavator
bucket wheel excavators
aerial lift bridge
play tower
load crane
steel stairs
impact tower
oil rig
vekoma
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cable-stayed bridge
transmission mast
transmission tower
electricity pylon
high voltage pylon
antenna tower
power pole
arresters
high voltage line
high-voltage power lines
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fire tower
34 meters high
transmission mast
transmission tower
antenna tower
rope ladder
tensegrity
observation tower
communications tower
steel tower
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fire tower
lookout tower
steel tower
aerial lift bridge
ironworkers
observation tower
watch tower
steeplejack
34 meters high
transmission tower
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the observation deck
westerdam
observation deck
disembarkation
skywalking
skywalks
ss rotterdam
disembark
disembarked
vlissingen
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the observation deck
point lighthouse torch
observation deck
observatoire
observation tower
rubjerg knude lighthouse
observatory
uss alabama
rotunno
severomorsk
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cable-stayed bridge
danube bridge
aerial lift bridge
hanging bridge
roof truss
tangshan railway bridge
samuel beckett bridge
bridge - building structure
centerbridge
brug