Enhance your family vacation, corporate travel or weekend getaway by staying at Holiday Inn Chicago Mart Plaza River North. Located atop 350 North Orleans presenting the best views of the Windy City from a unique 15th floor atrium lobby, our full-service hotel adjacent to the theMART welcomes guests with newly redesigned guestrooms, stellar service, and premium amenities. With its ideal location in the heart of Chicago's downtown, the Holiday Inn Chicago Mart Plaza River North is the perfect choice for business meetings, social events, weddings, or getaway featuring 521 guestrooms. 25,000 square feet of meeting, conference, and function space - including two ballrooms - occupy two floors and 15 separate function spaces that can accommodate groups from 10 to 800 guests. A downtown location in River North puts you near the famed Chicago Riverwalk, dining and nightlife of River North, attractions, and the Loop, the city's central business district.