Concrete bridge beams and support columns against a clear blue sky, showcasing structural design and engineering.
A construction scene by a railroad track with workers in orange uniforms operating machinery. A yellow crane is lifting steel beams beside a pair of tracks extending into the distance. Lush green trees line the side of the tracks, and a partially visible train moves on the right.
A black and white photograph of a bridge under construction over a body of water. The scene includes large concrete pillars supporting partially built sections of the bridge. In the background, there is an industrial chimney with stripes, and several towers, possibly for electrical lines, are visible against a hazy sky.
A construction site inside a building with unfinished walls made of concrete blocks. Exposed wires and beams are visible on the ceiling. Various construction materials, including wooden planks, are scattered around. There is a red partition and several cardboard boxes are stacked nearby. A traffic cone is positioned near a support beam.
A construction site featuring a large red crane lifting a concrete section with a massive hole, positioned above a series of similar concrete sections placed in a trench. Workers wearing helmets and high-visibility vests are visible among the structures. In the background, there is a red and brown building and a clear blue sky with some clouds.