Big Apple Greeter Jesse Richards’ forthcoming book, Unknown New York: An Artist Uncovers the City’s Hidden Treasures, illustrates the surprising, little-known corners that give New York City its special flavor and lasting appeal.

Tom Keating, a long-time Greeter and former educator, took 20 Greeters on a virtual visit to every borough as he discussed some of the hundreds of repurposed buildings that have changed ownership many times since being constructed.