There's one thing I should add to the first point on your list. We have 12 Unesco World Heritage Cultural Sites. Thats more than countries such are Egypt (6), Izrael (9), the Netherlands (9), Switzerland (9), the USA (10) or Austria (9).
Most of them can be visited with no entrance fee.
Absolutely! Thank you for adding that. I appreciate constructive feedback and the involvement that will educate other readers. 1 week spent in the Czech Republic and all of them can be visited with good degree of planning the trip ahead. Steem on @godfish .....