"They don't need to be transport-related," she said.
"Tours, information seminars, exhibitions, cultural events and more are all welcome."
Heritage Month, which will run from Wednesday, September 1, until Sunday, September 26, coincides with Andram Theatre's The Phantom of the Opera production at the Royal Whanganui Opera House.
The heritage vehicle parade will take place in the city centre on Saturday, September 18, and will be followed by a display at the Wanganui Racecourse that will continue on Sunday.
Ray White Whanganui has signed on as the main sponsor for Heritage Month which is also supported by Whanganui & Partners, Four Regions Trust, Whanganui Community Foundation and Kiwiwebs.
Ray White general manager Philippa Ivory said the agency was delighted to support the celebration of Whanganui's heritage.
"It seems like a nice follow on from the beautiful homes competition this year," Ivory said.
"I love Ann's drive and enthusiasm for the heritage transport theme and last year's Heritage Month was a great success."
Petherick said Heritage Month was a great opportunity to celebrate buildings and sites reaching major milestones like St Paul's Memorial Church at Pūtiki which was recently awarded NZ Heritage Category 1 status.
Māori sites of significance include the numerous marae along the Whanganui River Rd to the settlement of Jerusalem.
Other heritage sites of significance in the programme include Bushy Park Homestead & Forest Reserve, Whanganui Regional Museum, Alexander Heritage Research Library, Heads Road Old Public Cemetery, the Sarjeant Gallery and the Royal Whanganui Opera House.
Anyone interested in hosting or supporting events can contact Ann Petherick at whanganuiheritagemonth@gmail.com or call 027 347 7533.