The Marble Way connects the theatre to the Library of Celsus. It assumed its present-day appearance during the 5th century A.D. Drains were installed throughout the whole length of the street in the form of lower galleries. A few reliefs on the ground on the right hand side indicate the city brothel. The reliefs include a left foot, the portrait of a woman and a heart decorated with perforations. They are surrounded by an iron railing.

From the theatre, walk south along the marble-paved Sacred Way, also called the Marble Way. Along the sides of the street you can see the remains of the city's elaborate water and sewer systems beneath the paving-stones, and the ruts made by wheeled vehicles (which were not permitted along the Arcadian Way). It is also on this street where you can see the advertisement for the brothel. 

The large, open space to the left behind the columns stands the commercial agora (or marketplace) that was filled with shops.

The Sacred Way ends at the Embolos, or `central Ephesus,' with the Library of Celsus and the monumental Gate of Augustus to the right (west), and Curetes Way heading east up the slope.