This article explores the concepts of sustainability and seamless integration of interior and exterior environments of buildings in Sidney & Lois Eskenazi Hospital and West Baden Springs Hotel respectively. Sidney & Lois Eskenazi Hospital is a public hospital with state-of-the art facilities. West Baden Springs Hotel is a six-storey building with a 16-sided exterior. The hotel was built in 1902 and is known for its unique central dome atrium that has a span of 200 feet.