East River - Wikipedia
Madison Avenue - Wikipedia
Alphabet City, Manhattan - Wikipedia
The History of the Upper East Side
Upper East Side - All You Need to Know BEFORE You Go (with Photos)
Lower East Side - Wikipedia
Manhattan/Upper East Side – Travel guide at Wikivoyage
East Side (Milwaukee) - Wikipedia
Trump Plaza (New York City) - Wikipedia
Lucy Drexel Dahlgren House - Wikipedia
Manhattan/Upper East Side – Travel guide at Wikivoyage