At Dyffryn Gardens near Cardiff, treasures include an enormous amber necklace, an Antarctic compass and a penknife with hundreds of utensils.
After 18 years as the show's host and still the longest-serving host of Antiques Roadshow, Hugh Scully stepped down at the end of this series.
Series 23 marked Michael Aspel's first appearance as the show's presenter.
After 200 shows, this series marked Michael Aspel's last one as the show's presenter, having hosted the show since 2000.
This series sees Fiona Bruce take over presenting duties from Michael Aspel.
Ham House 1
Dyffryn Gardens 1
Royal Botanic Garden Edinburgh 1
Aston Hall 1
Portchester 2
Ulster 1
Woodhorn 1
Ham House 2
Bishop's Palace 1
Royal Botanic Garden Edinburgh 3
Aston Hall 2
Dyffryn Gardens 2
Ulster Folk Museum 2
Woodhorn Museum 2
Portchester 1
Royal Botanic Garden Edinburgh 2
Bishop's Palace 2
Ham House 3
Ulster Folk Museum 3