Related by context. Frequent words. (Click for all words.) 49 kinetic sculpture 49 sundial 47 sundials 47 pendulums 45 cantilever 45 James Turrell 44 camera obscura 44 vitrine 43 domed ceiling 43 stalactites 43 cupola 43 optical illusions 42 octagonal 42 biomorphic 42 arches 42 Fresnel lens 42 planetarium 42 chandelier 42 spherical 41 museum 41 Exploratorium 41 observatory 41 sculpture 41 terrazzo floor 41 clocktower 41 parallelogram 41 curved 41 abstract sculptures 41 geometric forms 41 dinosaur skeletons 40 Anselm Kiefer 40 orb 40 varying heights 40 astronomical observatory 40 pendant lights 40 Brownian motion 40 sculptures 40 Isamu Noguchi 40 gallery 40 conical 39 frieze 39 hexagonal 39 sculptural 39 glass encased 39 Muybridge 39 tree trunk 39 electromagnets 39 waterwheel 39 glass paneled 39 bell tower 39 electromagnet 39 Dale Chihuly 38 telescope 38 exhibit 38 vaulted ceiling 38 elaborately carved 38 pilasters 38 Dia Beacon 38 interplanetary spacecraft 38 dome 38 diorama 38 donut shaped 38 clocks 38 clockwise direction 38 parabola 38 balustrade 38 automata 38 leaded glass windows 38 solstices 37 cyclorama 37 cylindrical 37 sunrise sunset 37 louver 37 rock outcropping 37 scrims 37 octagon shaped 37 Dan Flavin 37 Voyager spacecraft 37 Bruce Nauman 37 Lazy Susan 37 Cupola 37 spiral staircase 37 atrium lobby 37 rotunda 37 Dinosaurs Alive 37 mosaic tile 37 muon 37 hexagon 37 rotating 37 turret 37 weather vane 37 Stained glass 37 plinth 37 Keck Observatory 37 cruciform 37 whirligigs 37 hemispherical 36 finial 36 cascading waterfall 36 ferris wheel 36 canted