Townhouses along the leafy streets of the Upper East Side are some of the most coveted real estate in New York City. One unique example recently came to market for the first time in decades, and it’s ...

This home takes window shopping to another level. In a sea of townhouses, one residence on Manhattan’s Upper East Side has charmingly refused to blend in — and now it’s looking for a new steward bold ...

Since 1969, the “bubble house” at 251 E. 71st Street has been shocking and delighting passersby with its modernist, space-age exterior. It’s impossible not to gawk at the convex oval windows embedded ...

The building began as a pretty typical Victorian townhouse from the mid-1860s, with elaborate carved details that were de rigueur for the time. In 1969, after it had been converted to apartments and ...