The ruins of this vast Roman temple are the centerpiece of the Deir El-Qalaa site. Dedicated to the local Phoenician god Baal Marqod (later equated with the Roman god Mercury), this structure dates back to the 1st century AD and was once one of the largest temples in Lebanon.

What to See: Look for the massive, finely-cut stone blocks forming the ancient foundations and the preserved column fragments, which hint at the temple's colossal original size.

Centuries after the Roman empire, this historic Maronite monastery was constructed in 1750, built directly atop the Roman temple's foundations. It’s a powerful example of history being built layer upon layer.

What to See: Observe the striking difference between the 18th-century masonry of the church and the colossal Roman stonework supporting it. The complex frequently hosts cultural events and ceremonies.

Adjacent to the main structures, you can find the scattered remnants of a former Byzantine settlement from the 5th and 6th centuries. This area reveals how a busy town once functioned here.

What to See: Explore the ruins of a Byzantine church, where you can still see portions of a preserved mosaic floor, and the foundations of what was once a colonnaded street.

Located within the larger ruins complex, the remains of a Roman bathhouse offer an incredible glimpse into Roman engineering and daily life.

What to See: Pay close attention to the hypocaust heating system—small ceramic pillars used to hold up the floor and circulate hot air. This system provided underfloor heating for the public bath

A short distance downhill from the main temple site, you will find the ruins of a smaller Roman temple dedicated to the goddess Juno (worshiped alongside the Phoenician goddess Astarte).

 What to See: Look for the prominent monumental doorway that still stands, which is believed to have been the starting point of a processional path between the two major Roman temples.