Staircases are more than just a way to get from one floor to the next. "A staircase is a stage," said Sam Cochran, global features director at Architectural Digest. "It's an opportunity for ceremony.

Mo Rocca is an award-winning correspondent for "CBS News Sunday Morning," where he reports on a wide range of topics. Rocca is also the host and creator of the hit podcast "Mobituaries," and the host ...