During our morning walk, we discovered this dolphin sign in the pavement.
Looked it up and found out that it is the Beirut Heritage Trail. It is a 2.5 km walking trail around the Souks and Beirut downtown:
“The circuit will start at the Beirut Souks, which retain the 2,500 year-old ancient street grid and Ottoman access gates, and incorporate several archeological remains including the Phoenico-Persian quarter, the city wall and moat, the restored Mamluk Zawiyat Ibn Iraq and Majidiya mosque. Among the sites featured in the trail are the Emir Munzer mosque, the Roman Baths, Riad El Solh Square and the Grand Theatre to name a few.” Source