A 3D model of a narrowing road warning sign, featuring a red border, white background, and black narrowing road symbols, with a highly recognizable warning design. It has a low polygon count and is suitable for road safety applications and traffic warning systems.

A 3D model of a bridge, featuring distinctive arch-shaped towers, steel cables, and red base decorations, with a modern aesthetic. It has low-poly technical characteristics and is suitable for digital art, architectural visualization, or decorative design.

A 3D model of a suspension bridge, featuring stone piers, metal cables, and wooden planks, with a classical design aesthetic. It has low polygon count and is suitable for decorative display, architectural visualization, or scene restoration.

A 3D model of a pedestrian overpass, featuring a transparent roof, metal railings, and concrete pillars. It has a modern minimalist aesthetic, high polygon details, suitable for urban pedestrian crossing scenarios. Category: Pedestrian Overpass (corrected from "Other").