A car was flipped onto its roof after being hit by a lorry on Exhibition Road in London, near the Natural History Museum, on Tuesday.
The hatchback was left upside down, and was later righted by firefighters, after being hit by the truck while turning a corner at around 2pm.
Two terrified women were left inside the vehicle banging on the windows for help. At least one passersby managed to get a picture of the scene and upload it to Twitter.
One witness, Mohamad Ridha, was behind the car that crashed as they waited in traffic.
Speaking to the Evening Standard, he said: "A truck came round the corner and had forgotten to close his back door.
"Everyone was waving and beeping to try and warn him.
"The metal ledge that was hanging down, it banged into the car and got stuck under its front, dragged it a little way then lifted it up in the air and threw it on to the floor."
Ride helped get the two women out of the car with the aid of other onlookers.
He said his car was also damaged in the incident, the likes of which, he added, "I've never seen in my life".
London's Natural History Museum is one of the capital's top tourist spots and exhibits a vast range of specimens from various segments of natural history.
It is one of three major museums on Exhibition Road in South Kensington, the others being the Science Museum and the Victoria and Albert Museum.
The museum is home to life and earth science specimens comprising some 80 million items within five main collections: botany, entomology, mineralogy, palaeontology and zoology. The museum is a world-renowned centre of research specialising in taxonomy, identification and conservation.