This reusable building set has miniature kiln-fired terra-cotta bricks, corn- and sand-based mortar, and a small trowel, allowing young masons to build three villas from blueprints or countless unique edifices. Made in the Spanish region of Catalonia, renowned for its terra-cotta brick industry, the 810-piece kit teaches schematic architecture through load-bearing walls, peaks, columns, and stairs, and the blueprints demonstrate the basics of running bond bricklaying--the most common overlapping pattern used in masonry. The lightweight, small trowel enables young hands to spread mortar across shingles and bricks, and build homes with windows, doors, and garages that open and close. Immersing the buildings in water rinses away the mortar, enabling countless construction projects. Ages 4 and up. 13" H x 10 1/4" W x 10 2/3" L. (13 1/4 lbs.)