IMI, National Geographic and the Great Cathedral Mystery

Words: Bronzella Cleveland

The International Masonry Institute (IMI) National Training Director Robert Arnold, along with other IMI staff, were sponsored by National Geographic to help construct a scaled down version of Brunelleschi's Dome in Florence, Italy for a program on the engineering of the world's largest brick dome. "NOVA's Great Cathedral Mystery," produced by National Geographic Television in association with Camera One Productions, premieres on PBS Feb. 12, 2014. See a preview of the program below.

Spherical Block LLC Renews as a Silver Partner in 2027

October 2026

The Mason Contractors Association of America (MCAA) is excited to announce that Spherical Block LLC will renew as a Silver Partner in the 2027 Masonry Alliance Program.

MAP Partner

Building The Ultimate Stress Test

October 2026

Seven years ago, we had a conversation with Jeff Buczkiewicz, president of the Mason Contractors Association of America (MCAA). We were introducing our company and its technology to him: Spherical Block, LLC. We use specialty concrete blocks to make roofs

Peter Roberts

Technical Talks

Elite Distribution Recommits as a Silver Partner in 2027

October 2026

The Mason Contractors Association of America (MCAA) is pleased to share that Elite Distribution will recommit as a Silver Partner in the 2027 Masonry Alliance Program.

MAP Partner

The Belden Brick Company Continues as a Gold Partner in 2027

October 2026

The Mason Contractors Association of America (MCAA) is happy to announce that The Belden Brick Company will continue as a Gold Partner in the 2027 Masonry Alliance Program.

MAP Partner

Interested in working with us? Learn about and join the Masonry Alliance Program →