This aesthetic transportation hub not only welcomes those visiting the World Trade Center, but serves as a representation of New York City’s strength and resilience after 9/11. Designed by Spanish architect Santiago Calatrava, the Oculus resembles a dove leaving a child’s hands. Every year, on the anniversary of the attacks, the sun shines directly through the skylight and illuminates the main hall. With plenty of retail and dining options, the Oculus is a great place to stop by before or after your visit to the 9/11 Memorial and Museum, the Survivor Tree, and the One World Observatory. – Tripadvisor