Another Text: In place of 'Markulis' here, the Tosefta has 'Avodas-Kochavim'.

Inference: In that case, 'Markulis' is La'av Davka, and the Tana mentions it only because in the town where he lived that was the Avodah-Zarah that was worshipped.

Halachah: Nowadays however, we do not tend to recite this B'rachah, since we see it every day, and as we learned earlier, all the B'rachos to do with seeing, we only recite from thirty days to thirty days.

Question: The Ri does not know as to why the Mishnah mentions specifically 'Markulis' more than any other Avodah-Zarah.

Answer: It seems to Tosfos however, that one needs torecvite this B'rachah only in a place where they are building an Avodah-Zarah or where a new one has just been erected.

Answer (cont.): In that case, he mentions specifically 'Markulis' because they throw stones at it every day, and it is as if they are constantly enlarging it (therefore, one does not recite a Berachah over an Avodah Zarah that is fixed).

Yerushalmi: The Yerushalmi states that 'If an Ovadah-Zarah has been uprooted from one location to another, then in the place where it now stands one recites "Baruch she'Nasan Erech Apayim le'Ovrei Retzono"; whereas in the place from where it was uprooted one recites "Baruch she'Akar Akum min ha'Makom ha'Zeh" '.