.ZACK has 3 unique spaces for your ceremony or reception. The Urban Ballroom is a versatile private event space located on the 4th floor with exposed brick walls and large wall to wall windows with panoramic views of downtown St. Louis. Seating up to 250 guests for a sit-down dinner or 350 for cocktails and hors-d'oeuvres. Sally's Rooftop Garden is perfect for wedding ceremonies and cocktail parties. Seating up to 200 guests. Sophie's Cocktail Lounge located on the 2nd floor, with an attached patio is ideal for after-hours parties until 1 am! Finally, because of our association with the Kranzberg Arts Foundation, proceeds from your wedding go to benefit the arts in St. Louis.