County Westmeath on Wikipedia.

Athlone.

Mullingar, Cathedral of the Immaculate Conception (R.C.). Built in 1836, it was demolished in 1936 to make way for the new Christ the King Cathedral. N 4347 5319. From an old postcard in Reg Dosell's Collection. Cathedral of Christ the King (R.C.). N 4347 5319. © Joseph Cantwell (2012). Interior view, © Joseph Cantwell (2011). Another view, and two more of the interior - 1, 2, all © John Balaam (2026). Link. All Saints (CoI). N 4386 5297. From an old postcard in Reg Dosell's Collection. A modern view, © John Balaam (2026). Link. Kingdom Hall of Jehovah's Witnesses, on Pettitswood Close, as seen by Streetview in 2025. N 4604 5312. Mullingar Presbyterian Church is on Grange Crescent and Raithin, and was seen by Streetview in 2025. Earlier Streetviews show that it was still being built in 2014. N 4239 5308. Link. Old O.S. maps show a Presbyterian Meeting House on Harbour Street (now Castle Street) at N 4383 5320. A former church now in commercial use stands on the site, and it was seen by Streetview in 2025. Old O.S. maps also show Friary in Ruins to the N.W. of Dublin Bridge (was Moran Bridge) on what is now Friars Mill Road at N 4411 5329. Its site lies somewhere within a small housing development (2025 Streetview). As far as I can see or discover, nothing survives above ground. Wikipedia has a list of Monastic Houses, including that of the Austin Friars, which it says has its site marked by a modern statue. It stands where Austin Friars Street meets McCurtain Street, and the statue was seen by Streetview in 2025.