The history lesson was fascinating. When you said, "All that you see was built after 1811." it reminded me of how young America is. The state I live in, Minnesota, didn't come into existence until 1858. I'm just blown away by the beauty and art there in your city. It's a little like Montreal, a little like Lisbon but mostly has its own unique character.
Age is an absolute value and relative at the same time...
Thank you for your kind words, dear @ericvancewalton.
That's one thing I admire when I go to Europe. You're welcome my friend! Take good care of yourself.