In 1879, William Henry Vanderbilt reclaimed the property and eliminated Gilmore from the operation. Vanderbilt gave the open-air depot an official municipal billing: Madison Square Garden.
The 1879 arena lacked architectural polish. It retained the bare masonry shell of the old rail shed, measuring approximately 425 feet by 200 feet. Spectators sat on wooden benches encircling a dirt floor. Canvas canopies offered minimal protection against rain. The venue was freezing in December and sweltering in July.
Yet the space proved functionally viable. It popularized six-day bicycle races, indoor tennis exhibitions, track meets, and the National Horse Show. Promoters learned how to turn seasonal athletic events into high-density commercial spectacles.
The structure had clear limitations. The wooden seating posed a severe fire hazard, and open-air elements drove away wealthy patrons. By 1889, a consortium of investors including J.P. Morgan, Andrew Carnegie, and William Waldorf Astor decided the drafty depot had reached the end of its functional life. They bought the site and ordered it demolished.
