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1904 St. Louis World's Fair, Lewis had the world's largest carbon arc searchlight installed atop the dome, 135 feet above street level. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ <unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk>