What to see : An acoustical phenomenon letting you talk to a friend in the opposite corner. Grab a friend, lean your heads into opposing corners, and test it out!
Best for : all ages
Plan to spend : few minutes
Address : 89 E 42nd St, New York, NY 10017, located on the Grand Central Terminal dining concourse near the famous Oyster Bar & Restaurant.
Hours : Grand Central Terminal is open to the public daily 5:30 AM – 2:00 AM
Price : FREE