This example creates a map that displays markers to denote various locations around Astor Place, New York City. It includes a toggle to switch to Street View, where the same markers are visible.
Read the documentation.
Git and Node.js are required to run this sample locally. Follow these instructions to install Node.js and NPM. The following commands clone, install dependencies and start the sample application.
git clone -b sample-streetview-overlays https://github.com/googlemaps/js-samples.git
Other samples can be tried by switching to any branch beginning with
git checkout sample-SAMPLE_NAME