From the Treasury the walk continues through a wider gorge, the Outer Siq. This has some tombs and other monuments carved into its sides and leads to a wide open space, central Petra. In central Petra there are several buildings and monuments. The theatre was built in the 1st century AD in Hellenistic style and could accomodate 8500 people. The paved path leading from the theatre to the centre of Petra is called Cololladed street. At its end are a number of temples, buildings and the royal palace.