Patent ID: 7867143

Claim:
A modular climbing tree comprising: at least a first generally vertical column comprising a top and a bottom; a first cap attached to said bottom, wherein said cap seals said bottom and comprises sides extending over said first column's edge and wherein said cap further comprises a first fastening element extending from its center; at least a first bracket comprising first and second equal sized bracket components and wherein said first and second bracket components are shaped and dimensioned to be placed around and to conform to said first column's shape and wherein said first and second bracket components are joined together via bracket joint elements and wherein each of said bracket components comprises an outer surface comprising one or more flat projections; and a plurality of fastening bolts arranged upon said flat projections and a second column surrounded by a second bracket and wherein said second column is attached to said first column by attaching the first bracket to said second bracket via at least one of said fastening bolts; wherein the relative orientation of said brackets is adjustable.