The cast iron bathtubs are a staple of our kitchens.

    They are easy to make, easy to clean, and cost little to nothing.

    But do they really hold up to the test of time?

    And what about the other kitchen sink pieces?

    Cast iron pots have been around since at least the 1600s, but they haven’t always looked the way we expect.

    Here are 10 of the best.