Structures
get information about a building
Eiffel Tower
compare several buildings
Empire State Building, Chrysler Building
do computations with building properties
height CN Tower / Merchandise Mart
get information about a dam
La Esmeralda Dam
compare several dams
Grand Coulee Dam, Glen Canyon Dam, Mica Dam
do computations with dam properties
length Three Gorges Dam / Hoover Dam
get information about a bridge
Golden Gate Bridge
compare several bridges
Bosphorus Bridge, Forth Road Bridge
do computations with bridge properties
length George Washington Bridge / Brooklyn Bridge
get information about a tunnel
Laerdal tunnel
compare several tunnels
Moffat tunnel, Riola tunnel, Otai tunnel
do computations with tunnel properties
length Seikan tunnel / Aki tunnel
get information about an oil rig
deepwater horizon
find oil rigs in an area
Oil Rigs in the Gulf of Mexico
do calculations with oil rig data