It’s an interesting walk through some great and some curious architecture. Note, however, this quoted description of Number 48, the Third Church of Christ, Scientist, in Washington, D.C.:
This building is not only hideous but it is unwelcoming and, as anyone who has seen the J. Edgar Hoover Building would agree, it is extremely difficult and expensive to maintain. It does place undue monetary restrictions on how the church can serve the city because the church has to sink so much into the maintenance of the building.
I guess that qualifies as “extraordinary.” Or maybe “Extra-Extraordinary.”