CASH ONLY - that $4 donation isn't voluntary, and as far as I (or the volunteers) could tell, no ATM nearby. Actually had to leave and come back another day - haven't carried cash since, well maybe since I had a landline, lol. Run by volunteers our tour guide had to have been one of the originators/designers of the musem - intimately involved in the industry and chock full of anecdotes, explanations and willing to answer questions far beyond the programmed tour. It isn't busy, you can gain as much knowledge transfer as you'd like. I found the extended conversation on early swithboard operators and connections fascinating. Phones galore, operating mechanisms explained, equipment operation, growth and modernization covered, etc. The diorama displays - well, they speak to a 1970's/80's sensibility - doubt one would design them today, but they do break up what might otherwise be an endless diet of equipment and to that end are welcome. Kids might get a little bored, but otherwise if you grew up with a phone, and especially if you paid attention to your parent's stories - the whole thing is a hoot - and very worthwhile investment o fthat $4 :)