Here’s a pencil and watercolor sketch of the Erechtheum, an Ionic temple built on the Acropolis near the Parthenon in Athens. The porch on the left is supported by caryatid figures.
Sketching a famous subject like this is an extraordinary experience, because you can see the echo of this structure in so many other buildings that it has inspired. Only by drawing it do you fully appreciate it. All the proportions and details in this architecture seem perfect, which makes it impossible to capture in a hasty drawing.
A local came up to me and I asked her to write the name of it in Greek.
Wikipedia on Erechtheum