New Westminster is known for its rich architecture and landmarks dating back to the 18th century. The top three best architectural landmarks in New Westminster are the Irving House, New Westminster Public Library, and The Museum of the Royal Westminster Regiment Historical Society.
- The Irving House, built in 1865, is considered the oldest house located on the lower mainland. It was the house of the famous captain William Irving. The house owes its architecture to the Victorian and early Edwardian eras. Its 14 furnished rooms are still intact and in original condition.
- The New Westminster Public Library was also founded in 1865. It houses books and magazines on various subjects.
- The Museum of the Royal Westminster Regiment Historical Society keeps a valuable collection of artifacts. This museum is filled with memorabilia from WW1, including armaments, uniforms, banners, and a variety of soldier’s items.