"Raises and lowers on command", "cat": "Bridges"}, {"code": "bridge5", "title": "Covered Bridge", "desc": "Roofed, protects from rain", "cat": "Bridges"}, {"code": "bridge6", "title": "Sky Bridge", "desc": "Connects two towers in the air", "cat": "Bridges"}, {"code": "bridge7", "title": "Natural Arch", "desc": "Looks grown, not built", "cat": "Bridges"}, {"code": "bridge8", "title": "Stepping Stones", "desc": "Hop across, one stone at a time", "cat": "Bridges"}, {"code": "bridge9", "title": "Glass Bridge", "desc": "See through to below", "cat": "Bridges"}, {"code": "bridge10", "title": "Glowing Bridge", "desc": "Lights your path at night", "cat": "Bridges"}, {"code": "bridge11", "title": "Long Viaduct", "desc": "Miles of arches across the valley", "cat": "Bridges"}, {"code": "bridge12", "title": "Swing Bridge", "desc": "Pivots to let ships pass", "cat": "Bridges"}, {"code": "bridge13", "title": "Chain Bridge", "desc": "Hung from great iron chains", "cat": "Bridges"}, {"code": "bridge14", "title": "Bamboo Bridge", "desc": "Light, flexible, natural", "cat": "Bridges"}, {"code": "bridge15", "title": "Ice Bridge", "desc": "Frozen crossing, beautiful and cold", "cat": "Bridges"}, {"code": "bridge16", "title": "Rainbow Bridge", "desc": "Arcs in full color", "cat": "Bridges"}, {"code": "bridge17", "title": "Underwater Tunnel", "desc": "Glass tube beneath the waves", "cat": "Bridges"}, {"code": "bridge18", "title": "Tree Bridge", "desc": "Living wood grown across", "cat": "Bridges"}, {"code": "bridge19", "title": "Crystal Bridge", "desc": "Prismatic, catches the light", "cat": "Bridges"}, {"code": "bridge20", "title": "Infinity Bridge", "desc": "Seems to go on forever", "cat": "Bridges"}, {"code": "dome1", "title": "Simple Dome", "desc": "Half-sphere, clean and classic", "cat": "Domes & Arches"}, {"code": "dome2", "title": "Great Dome", "desc": "Massive, cathedral-scale", "cat": "Domes & Arches"}, {"code": "dome3", "title": "Glass Dome", "desc": "Transparent, sky visible within", "cat": "Domes & Arches"}, {"code": "dome4", "title": "Geodesic", "desc": "Triangular panels, futuristic", "cat": "Domes & Arches"}, {"code": "dome5", "title": "Onion Dome", "desc": "Bulbous top, eastern style", "cat": "Domes & Arches"}, {"code": "dome6", "title": "Small Cupola", "desc": "Tiny dome for a roof accent", "cat": "Domes & Arches"}, {"code": "dome7", "title": "Half Dome", "desc": "Split open, dramatic", "cat": "Domes & Arches"}, {"code": "dome8", "title": "Nested Domes", "desc": "Domes within domes", "cat": "Domes & Arches"}, {"code": "dome9", "title": "Floating Dome", "desc": "Hovers, no visible support", "cat": "Domes & Arches"}, {"code": "dome10", "title": "Underground Dome", "desc": "Buried, entrance from above", "cat": "Domes & Arches"}, {"code": "arch1", "title": "Round Arch", "desc": "Perfect semicircle opening", "cat": "Domes & Arches"}, {"code": "arch2", "title": "Pointed Arch", "desc": "Gothic, reaches upward", "cat": "Domes & Arches"}, {"code": "arch3", "title": "Flat Arch", "desc": "Modern, clean lines", "cat": "Domes & Arches"}, {"code": "arch4", "title": "Horseshoe Arch", "desc": "Curves inward, Moorish style", "cat": "Domes & Arches"}, {"code": "arch5", "title": "Triumphal Arch", "desc": "Grand monument to victory", "cat": "Domes & Arches"}, {"code": "arch6", "title": "Natural Arch", "desc": "Wind-carved, organic", "cat": "Domes & Arches"}, {"code": "arch7", "title": "Glowing Arch", "desc": "Portal of light", "cat": "Domes & Arches"}, {"code": "arch8", "title": "Double Arch", "desc": "Two arches intertwined", "cat": "Domes & Arches"}, {"code": "arch9", "title": "Broken Arch", "desc": "Ruined, romantic", "cat": "Domes & Arches"}, {"code": "arch10", "title": "Infinity Arch", "desc": "Loops back on itself", "cat": "Domes & Arches"}, {"code": "mat1", "title": "Granite", "desc": "Speckled gray, incredibly hard", "cat": "Materials"}, {"code": "mat2", "title": "Marble", "desc": "White with veins, elegant", "cat": "Materials"}, {"code": "mat3", "title": "Sandstone", "desc": "Warm, layered, desert-born", "cat": "Materials"}, {"code": "mat4", "title": "Limestone", "desc": "Pale, soft, easy to carve", "cat": "Materials"}, {"code": "mat5", "title": "Obsidian", "desc": "Volcanic glass, black and sharp", "cat": "Materials"}, {"code": "mat6", "title": "Crystal", "desc": "Clear, refracts light beautifully", "cat": "Materials"}, {"code": "mat7", "title": "Gold", "desc": "Precious, shines forever", "cat": "Materials"}, {"code": "mat8", "title": "Copper", "desc": "Warm metal, greens with age", "cat": "Materials"}, {"code": "mat9", "title": "Iron", "desc": "Strong, dark, industrial", "cat": "Materials"}, {"code": "mat10", "title": "Wood", "desc": "Natural, warm, living", "cat": "Materials"}, {"code": "mat11", "title": "Bamboo", "desc": "Light, strong, flexible", "cat": "Materials"}, {"code": "mat12", "title": "Ice", "desc": "Frozen water, blue and clear", "cat": "Materials"}, {"code": "mat13", "title