A seal carving exhibition about Beijing's Central Axis - a string of buildings, complexes and archaeological sites running north-south through the capital's old city - opens at the China Millennium Monument's art museum on July 19.

Using the medium of seal carving, the exhibition presents the landscape, architecture, and historical and cultural values of the Central Axis and focuses on 15 core heritage sites from Yongding Gate at the southern end of the axis, to the Bell and Drum Towers at the northern end.

Some 300 seals and imprints are on display, all designed, made or donated by professional engravers, teachers and students from educational institutions, corporate employees and researchers.

While rooted in traditional seal-carving skills, the displays incorporate innovative elements such as the use of new fonts, materials, manufacturing techniques and appearance to enhance their contemporary aesthetic appeal. There is even an "intelligent" seal with which visitors can connect wirelessly via NFC to view digital exhibits on their phones.

The opening ceremony also marks the release of two books — a catalog of exhibits, and a guide to seal carving to popularize the art form, its connection with the Chinese language, and cultural significance. The exhibition runs through to Aug 25.