Two identical rotundas share a grassy midtown lot with W.A. Sarmiento's 19-story, Googie-style Phoenix Financial Center. Should you ever be offered the chance to peek into either, we have two words for you: Take it.Inside the buildings, which were Mad Men-esque banking offices in their heyday, light floods through floor-to-ceiling windows, and surfboard-shaped stairs lead to a second-floor loft. Cast your glance up and you'll find that the space-age dome ceilings are adorned with carved-out stars filled with colored glass. Should you access the southern rotunda (last we checked, it's still sitting empty), its loft has access to a closed-off loggia built as a connecting walkway to the second floor of the Financial Center. While you're there, perhaps you'll have some luck finding the rumored time capsule buried on the site — building managers have hunted for it, but it's never been found.