A toy construction set including a plurality of elongated tubular elements each including first and second ends having identical outside diameters. A plurality of differently configured connectors each include a plurality of connecting legs having ends with identical inside diameters sized to closely mate and providing releasable engagement with the tubular elements. The connectors are individually configured to have preferably up to eight (8) connecting legs variously oriented one to another and radially extending from a focal point wherein the toy construction set is used to assemble a three-dimensional structure including a plurality of tubular elements releasably connected to a plurality of connectors.