Yesterday's World, the historic tourist attraction on Great Yarmouth's Golden Mile, is up for sale.
The vast collection of weird and wonderful artefacts and recreated life-size street scenes and shop displays has taken visitors on a journey through history for the past seven years.
And although the owners want to sell the business, they hope to preserve the attraction for visitors by selling it as a going concern, along with more than 150,000 original items including a 115 year-old working Victorian carousel.
The exhibit was opened in 2007 by holiday park owner Peter Bull, who wanted to show off his collection and expand his other Yesterday's World at Battle, near Hastings.
It is being sold by property company Colliers International and requires a specialist to complete an inventory to value the thousands of items before the attraction can be priced.
Simon Bland, Colliers International Director, said: 'The owners have decided to sell because it's a long way from where they are based.
'I have to say this is one of the most unusual projects I've taken on.
'We obviously need to know the value of all of the exhibits in order to put a fair price on the business and so will begin an inventory examining some of the bigger ticket items.
'We're hoping the inventory can be completed in three weeks, and once we've estimated the value we can then bring Yesterday's World to market.'
The exhibits include second world war memorabilia, a carpenter's workshop, curiosity shop, toy shop, vintage photography, silent movie theatre showing original Charlie Chaplin films, a general store and other vintage attractions.
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