The results of an archaeological dig beneath the Shire Shopping Centre development in Leicester opens to the public on Saturday.
The dig has uncovered thousands of artefacts dating back 2,000 years to medieval, Anglo-Saxon and Roman times.
Visitors can take a half-hourly guided tour, which will include demonstrations of archaeological methods and displays of recent finds.
The dig was carried out by Leicester University's Archaeological Services.
Spokesman Richard Buckley said old Leicester was being laid bare.