Filming Locations Guide: Where was A Discovery of Witches filmed? The Castle & the House

The stunning architecture of Oxford, the so-called city of dreaming spires, served as the perfect backdrop for many exterior scenes.

Pictured, the Radcliffe Camera circular library, featured in several scenes.

The Congregation stronghold’s exterior is the island of San Giorgio Maggiore. The Palladian Cloisters of this Benedictine monastery, now part of the Cini Foundation, are also featured in the series.

However, some interior rooms of the scenes set in Venice were filmed in the studios in Wales.

The grand meeting hall of the powerful Congregation is inspired by the Pantheon vault in Rome.

The vampire's palace home of Gerbert D’Aurillac, Domenico, and Juliette is the Palazzo Contarini Polignac.

The entrance is the Gallerie dell'Accademia near the Ponte dell'Accademia bridge over the Grand Canal.

The exterior of the Clermont family ancestral home, the Sept-Tours Castle, was filmed in the Castle of Monselice (Castello Cini), located in the Veneto region.

The towers and many architectural elements and details of the fortress were added using CGI effects.

The series returned to Oxford for season two. Phoebe's office exterior (played by Adelle Leonce) is located in the History of Science Museum, the building with carved stone busts outside, next to the Sheldonian Theatre.

The interior is one of the committee rooms in the Glamorgan Building at Cardiff University.

Episode 10 also briefly features the exterior of the Randolph Hotel on Beaumont St in Oxford.

Marcus Whitmore's house (played by Edward Bluemel) in Oxford is actually located at 6 Berkeley Square in Bristol.

The Bristol Film Office confirmed that the interior of the house was also filmed here on location.

Season two finds Matthew and Diana in Elizabethan London, hiding in time from the Congregation. The producers found a 16th-century country house called Plas Machen in Lower Machen near Newport (Wales).

The manor had several old barns nearby, ideal for building the street and the interiors of the London set.

This location had been previously used to film scenes of the Sherlock Holmes and Dr. Who series.

The house of the Witch’s Council is the 15th-century medieval mansion Tretower Court and Castle (Llys a Chastell Tre-tŵr) in Wales.

Atlas of Wonders has tracked down the location of Rudolf's castle, nestled amidst mountains in Bohemia: The Prösels Castle (or Presule) is a Gothic complex featuring Renaissance paintings situated near Bolzano in the Italian South Tyrol region.

The Queen Elizabeth's chamber is the dazzling Chapter House at Wells Cathedral. This 13th-century wonder is an octagonal room with a ribbed vault supported on a central column, often likened to a palm tree.

In the first and second episodes of season two, the cloister was filmed at Gloucester Cathedral.

Also, some interior sets like the room in the palace where Queen Elizabeth I (Barbara Marten) holds court, were built at the Bad Wolf Studios in Cardiff

In the ninth episode, Kit and Louisa take Diana to a secluded dungeon. This scene was filmed at the Wogan Cavern, a vast natural cave located beneath the Pembroke Castle in South Wales.

The beach is the Rhossili Bay in Gower Peninsula (Wales), with the Mont Saint-Michel added via CGI. This is the same beach featured in the Britannia series.

The exterior of Chris' laboratory in London is the Imperial College in South Kensington.

The house in Mayfair, London, was actually filmed at 38 Queen Square in Bristol.

The court building in New Orleans, Louisiana, was filmed at Cardiff University's Glamorgan Building, a former county hall in Cathays Park.

As WalesOnline reported, the colonial-style house was built in front of Cardiff University's Main Building.

There is an establishing shot of the graveyard filmed at the Coliseum Street entrance of historic Lafayette Cemetery No. 1 in New Orleans, although these scenes were probably filmed somewhere else in Wales.

The dark bar of the vampires and Ransome in New Orleans is the Barocco Wales restaurant at 12 Wharton Street, located in the center of Cardiff.

The abandoned fortress in Chelm in the Lublin region of Poland (near the border with Ukraine and Belarus) was filmed at the Defensible Barracks in Pembroke Dock.

Also known as the VR 1844, the thick forest surrounding this Victorian-era fortification, built in the mid-1840s, was CGI'd into the scene.