A 3D model of a narrowing road warning traffic sign, featuring triangular shape, red border, white background, black narrowing symbols, and metal pole, with visible, standard warning design. Detailed 3D rendering, suitable for road safety education and navigation integration.

A 3D model of a bridge, featuring a red arch, transparent railings, and side staircases, with a modern minimalist aesthetic. It has low polygon count and is suitable for pedestrian access and urban landscape.

A 3D model of a bridge, with stone/concrete materials, arched spans, and tower-like pillars, featuring a classical aesthetic. It has multiple arches and detailed railings, suitable for architectural visualization or historical scene restoration.

A 3D model of a traffic warning sign, featuring a red-bordered triangle, white background, black exclamation mark, and black-and-white striped pole. It has a warning, high-contrast aesthetic, detailed 3D rendering, suitable for road safety and warning areas.