ObservatoryW
Observatory
List of highest astronomical observatoriesW
List of highest astronomical observatories
Equatorial roomW
Equatorial room
Gravitational-wave observatoryW
Gravitational-wave observatory
International Latitude ObservatoryW
International Latitude Observatory
Los Molinos ObservatoryW
Los Molinos Observatory
RTT-150W
RTT-150
SISTINEW
SISTINE
Solar observatoryW
Solar observatory
Solar tower (astronomy)W
Solar tower (astronomy)
Space telescopeW
Space telescope
Thai National ObservatoryW
Thai National Observatory