Nearly 100 historic buildings across Shanghai will open free to the public on Saturday to celebrate Cultural and Natural Heritage Day.

Two century-old sites, a court and police station of the former French concession in Huangpu District and the Drummond Apartment in Jing’an District, will also open to the public for the first time since undergoing major renovations.

Many of the 97 structures — mostly cultural relics, former residences of notable persons and historic sites — are usually closed to the public, or charge admission fees.