pyramid
welcome sign
arched gateway
Correct!
An arched gateway was built at the end of the Siq. It collapsed during an earthquake in 1896, but there are still traces of it in the rock.
Siq
Imagine you are an Arabian incense trader in 100 B.C. Arriving in Petra, you enter through the Six—a long, winding gorge cut into the rocks surrounding the city. Towering cliffs cut off the sunlight along the narrow passageway. As you round the final bend, you get your first glimpse of the city—a grand monument cut into the cliffs.