The French cathedral houses the Hugenottenmuseum. It represents the ongoing influence on Berlin by the Huguenots who emigrated from France after the revocation of the Edict of Nantes. Crown Prince Friedrich William encouraged them to settle here because most of them were skilled workers or otherwise useful to the kingdom. One memorable artwork, in room nine of the museum, pictures Crown Princess Dorothea exclaiming "But he's a refugee!" upon being presented a very valuable set of jewels by Pierre Fromery. The generally agreed-upon view of refugees as poor, without resources let alone diamonds, was blown apart by the talented French Protestants forced to leave their country due to religion. One of the most notable effects of having such a large French population was their influence on the infamous Berlin dialect. Berlinerisch words such as Kinkerlitzchen (from French "quincaillerie" - kitchen equipment) and Muckefuck (from French "mocca faux" - artificial coffee, though that etymology is not universally accepted) are unique to the area. The Französischen Dom (cathedral) itself was built to resemble the main church of the Huguenots in Charenton, France, destroyed in 1688. It has housed the museum since 1929. Closed till 2019

The French Church of Friedrichstadt is in Berlin at the Gendarmenmarkt, across from the Konzerthaus and the so-called German Cathedral. The earliest parts of the church date back to 1701, although it was subsequently expanded. After being heavily damaged during World War II, the church was rebuilt and continues to offer church services and concerts.