The walls of Piran are mentioned as early as in the 7th century, when they were built around the town core located on the Punta. Since then the town began to expand towards the mandrač, gradually incorporating the new quarters that rose outside the walls. Due to the expansion of the city and to defend it from the attacks of external enemies, the second and third circles of the city walls were built with defensive towers. Of exceptional historical value are the most extensive remains preserved on the Mogorone hill, from where you can admire the characteristic panorama of the city.
In Piran, seven gates have been preserved to this day, which once served as entrances to the city walls: Mugla Gate, Delfin Gate, Campo Gate, Baroque St. George’s Gate, Marciana Gate, First Raspo Gate and Second Raspo Gate. Porta Mugla is one of the oldest. Porta Delfin is the best preserved Gothic gate. It was built in the 15th century by the then mayor Delfin and is known for its typical coat of arms with three dolphins.