The Aqua Tower, also known as the Aqua Building, is a stunning and innovative skyscraper located in downtown Chicago, Illinois, USA. Designed by renowned architect Jeanne Gang and her firm Studio Gang Architects, the Aqua Tower is a modern architectural marvel that has become a distinctive and iconic landmark on the Chicago skyline since its completion in 2009.

Standing at a height of 262 meters (859 feet) with 82 floors, the Aqua Tower is one of the tallest buildings in Chicago and the tallest building in the world to have a woman as its lead architect. What sets the Aqua Tower apart from other skyscrapers is its unique and unconventional design, which features undulating balconies and a wavy, sculptural facade that gives the building a dynamic and fluid appearance reminiscent of water ripples or waves, hence its name "Aqua."

The design of the Aqua Tower was inspired by natural forms and elements, such as the contours of the Great Lakes and the natural landscape of the Midwest, as well as the ecological principles of sustainability and environmental responsibility. The building's distinctive balconies not only create a visually striking and aesthetically pleasing facade but also serve practical purposes, providing shade, natural ventilation, and outdoor spaces for residents to enjoy panoramic views of the city and Lake Michigan.

In addition to its innovative design and architectural significance, the Aqua Tower is also known for its commitment to sustainability and green building practices. The building incorporates a variety of eco-friendly features and technologies, including energy-efficient systems, recycled materials, and green roofs, which contribute to its LEED (Leadership in Energy and Environmental Design) Gold certification and help reduce its carbon footprint and environmental impact.

The Aqua Tower is a mixed-use development that includes luxury condominiums, rental apartments, retail spaces, and hotel accommodations, as well as a variety of amenities and facilities for residents and guests, such as a fitness center, swimming pool, spa, and outdoor terrace. The building's prime location in the heart of downtown Chicago offers residents and visitors easy access to the city's vibrant cultural, entertainment, dining, and shopping destinations, as well as public transportation options and major highways.