Wrest Park English Heritage national archaeological store to open
Prehistoric antlers, parts of Roman bridges and a 19th Century beam from a London hospital are among thousands of items due on public view next month.
The new national archaeological collections store at Wrest Park in Silsoe, Bedfordshire, will offer guided tours in June, English Heritage said.
The purpose-built store cost nearly £2m and holds more than 153,000 artefacts spanning more than 2,000 years.
A spokeswoman said it was "proud" items not usually displayed would be seen.
The artefacts, which make up a third of the organisation's total stored collection, include a variety of items from buckles, brooches and coins to fireplaces and doors.
All had previously been held in five leased buildings around the country, English Heritage said.
Curators, museum technicians and archaeologists have checked, documented, repacked and managed the movement of 83 lorry loads of items over the past two and a half years to the central location.
Now recorded on a database, the artefacts are being held floor-to-ceiling at the 15,650 sq ft (1,450 sq m) site, which visitors can tour with a conservationist from June on the first Monday of every month.
The archaeological pieces come from sites including Wroxeter Roman site and Haughmond Abbey in Shropshire, Kirby Hall in Northamptonshire, and Essex's Hill Hall and Audley End House.
More than 6,000 objects from 17th to 19th Century London houses, including nearly 1,000 wallpapers, are also stored.
The oldest objects come from Neolithic flint mine Grimes Graves in Norfolk, and the tallest is an 11ft (3.5m) high tower for changing light bulbs in Covent Garden.
The guided tours of the £1.86m site will also demonstrate how English Heritage cares for the objects.
Curator Charlotte Newman said: "We are really excited to show visitors behind the scenes in the store and give them a chance to see our collections not normally on display."