Bendigo's Beehive Building opened to the public on Saturday as part of the National Trust Heritage Festival 'Hidden Gems'.
A staggering number of people turned out for the Beehive section of the event.
National Trust of Australia (Victoria) Bendigo and Region branch president Dr. Gary Hill said this year's event had been a success so far.
"From the phone calls we have had there will be at least 300 people," he said.
"A lot have shown up that did not let us know they would come.
"Its obvious from the numbers that Bendigo people are passionate about the heritage.
"They really appreciate the work that the council has done on restoring and conserving the beehive building to ensure that it is there for the future.
"People come to Bendigo because they love the feel of it and that comes from the heritage of the town.
"Bendigo is well known for its fine old buildings, wide tree-lined streets and surrounding environmental landscapes."
Bob and Heather Roberts were among the crowds of people queuing to see inside the building.
"I came up here a few years ago and it was full of pigeon poo," Mr Roberts said.
"It's great to have an opportunity to come and see the building."
Faye Dole caught a glimpse of the building with her husband Richard.
"I used to work in a shop downstairs called Honey's Frock Shop and we had a storeroom on the second level," she said.
City of Greater Bendigo CBD place manager Phil DeAraugo said they had not expected the event to be as popular as it was.
"When fully restored we think it will be a drawcard similar to the arcades in Melbourne," he said.
"We have been doing work on it for the last 14 years and while it is still a building site in some respects, it is definitely safe on the ground and first levels."
The national trust opened the doors of many historic Bendigo buildings over the weekend to promote Bendigo's rich heritage.
See pictures on page 16 of Monday's Bendigo Advertiser