This is a tent from the Big Apple Circus.  It was made in Bordeaux, France.  It is made of PVC fabric, the tent is totally opaque.  The diameter is 138 feet.  It's height is 52 feet at highest point (masts), 46 feet at center (cupola).  Top is made of 6 sections laced together with the cupola cover.  Side wall made of 8 sections, totaling 433 feet in circumference and measuring 16 feet high.  The tent is supported by four telescopic masts which are raised with electric motors and
depending on the number of motors per mast (it can have one or two), a mast can weigh between 2,300 and 2,600 pounds.  It's masts are 61 feet highwhen erected (fully extended), and 46 feet long when in traveling position (retracted).  The cupola is a domed oval frame, 41 feet long, 6 feet 8 inches wide, and 4 feet 5 inches high. It weighs a total of 2,200 pounds, is supported by the masts and is also manufactured in Tournes, France.  The periphery of the tent is supported by 96 side poles measuring 16 feet high.  The masts and tent are tied to a total of 190 stakes.  It takes 5 hours for a crew of 35 to set up the tent and 3 hours to tear it down, (this does not include installation of seating, lighting and sound systems and setting the ring).