
The overwhelming number of Jewish heritage sites in Europe are far from being overwhelmed by mass tourism. A major exception is the Jewish heritage in Prague — where in 2018, three former synagogues that form part of the Prague Jewish Museum were among the 20 most visited attractions in the Czech Republic, and among the Top 10 in Prague.

They are the 16th-century Pinkas synagogue, which ranks No. 8 on the list; the 17th-century Klausen Synagogue, at No. 15 and the Moorish-style Spanish synagogue at No. 16, according to statistics released recently by the official Czech Tourism agency.
(Further down the list, the Maisels synagogue, also part of the museum, was No. 30; and the Terezin memorial — site of the Nazi concentration camp/ghetto 50 km north of Prague — was No. 38.)
Number One on the list was Prague Castle, with 2.44 million visitors.
The Jewish Museum is consistently among the top two or three the most-visited museums in the Czech Republic — in 2018 it was visited by 721,200 people — and the current statistics confirm this.

The Pinkas synagogue, which serves as a Holocaust memorial and includes the names of more than 77,000 Shoah victims from what is today the Czech Republic, was visited by 682,100 people.
The Klausen Synagogue, which houses an exhibit on Jewish customs and traditions, saw 489,500 visitors.
The Spanish Synagogue, which has had an exhibit on the History of the Jewish in Bohemia and Moravia, welcomed 465,000 visitors (the synagogue closed on June 1, 2019 for renovations.)
The Maisels Synagogue, with a historical exhibition, received 347,400 visitors.

Some 297,700 people visited Terezin, and old fortress where the entire town was turned into a ghetto and where today there are memorials, a museum, exhibitions, a crematorium, and a synagogue that had been hidden inside a ghetto house.
See the entire list of Top 50 attractions (PDF)