After an initial assessment, Smithsonian officials said “the most serious structural damage” from Tuesday’s earthquake was to the Smithsonian Castle and a storage facility in Suitland, Md.

The Castle, the oldest building on the National Mall, will remain closed to visitors and staff. It contains an information center, a cafe and administrative offices. Five decorative turrets on the Castle were heavily damaged, according to the Smithsonian.

All the Smithsonian museums were reopened Wednesday and will be open at regular hours Thursday.

The storage facility in Suitland is not open to the public and is now closed to staff. At the facility eight jars of fish specimens fell from their shelves and they were transferred to other jars.

At the National Museum of Natural History, which is located on the National Mall, 50 jars of scientific materials preserved in alcohol also fell from their shelves. The research materials, including bats, have been placed in other jars.