On that last point, George Washington is still considered the most popular president of the USA. In his own time he would come to cities and people (all of them) would swarm the streets. When the Constitution was signed Washington was in retirement, but the writers of the Constitution assumed Washington would be the first President. There were roughly 8 candidates running for the position, Washington wasn’t one of them, and when Washington announced he would come out of retirement the other candidates dropped out of the running. Washington won the first election unanimously.
A lot of Europeans don’t realize this, but the Constitution wasn’t the first government of the new USA. First there was the Articles of Confederation which went from 1777-1789 so Washington had been gone for quite some time and was still so popular.
It’s not at all surprising that it’s one of the most popular landmark names in the US (street and city names).
Some other popular names include Lafayette, MLK, Lincoln, and Jackson, Jefferson, and Madison.