PHILADELPHIA — An archeology museum in Philadelphia has moved thousands of ancient treasures offsite and is using vibration sensors to monitor delicate items still on display while an demolition project continues next door.

The Penn Museum, which houses mummies, a sphinx, pottery, and other historical pieces, has also modified exhibits to prevent damage to fragile objects.

‘‘We’ve tried to minimize our impact on the visitors, so that we’re keeping things up as long as we can and as much as we can,’’ said head conservator Lynn Grant.

The museum is part of the University of Pennsylvania, which has been dismantling a nearby 850-car parking garage and 23-story medical office tower to make room for a new hospital pavilion.

Associated Press