Bath is used many times as a stand-in for London throughout the series, and particularly for Grosvenor Square. It will likely be familiar to many fans of regency romance due to the city's links with Jane Austen and her works.
One of the city's most iconic roads is the Royal Crescent, which is seen repeatedly throughout both seasons of the show: in wide shots establishing setting; for carriages to drive past; and as the exterior of the homes of Anthony's season 1 mistress Siena, as well as the Featheringtons.
Sitting in the heart of Bath, the outside of the Crescent is completely open and free for members of the public to roam. No.1 has also been converted into a museum about Bath during the Georgian era, a testament to its position as one of the most impressively kept examples of Georgian architecture. The Crescent also houses the Royal Crescent Hotel and Spa, a five-star hotel.
As Bath is home to many "Bridgerton" filming locations, fans can also partake in "Bridgerton" tours round the city, including the Royal Crescent and more.