various structural issues. A replacement bridge opened in 2020. By the early 2020s, increasing numbers of celebrities were moving to the neighborhood. Architecture and places of interest Brooklyn Heights was the first neighborhood protected by the 1965 Landmarks Preservation Law of New York City. The neighborhood is largely composed of blocks of picturesque rowhouses and a few mansions. A great range of architectural styles is represented, including Greek Revival, Italianate, Second Empire, Victorian Gothic, Romanesque, Neo-Grec, and Classical Revival, as well as a few 2/1/2-story late Federal houses from the early 19th century in the northern part of the neighborhood. Some houses were constructed of brick, but the dominant building material was brownstone or "Jersey freestone", a reddish-brown stone from Passaic County, New Jersey. A typical brownstone rowhouse was three or four stories tall, with the main floor above the street level and reached by stairs, referred to as a "stoop", a word derived from Dutch. The basement is typically a half-flight down from the street, and was used as the work area for servants, including the kitchen. The first floor would be the location of the public rooms, bedrooms were on the second floor, and servants' quarters were on the top floor. The rear of the lot would feature a private garden. Aside from rowhouses, a number of houses, particularly along Pierrepont Street and Pierrepont Place, are authentic mansions. The concentration of over 600 pre-Civil War houses, one of the largest ensembles of such housing in the nation, and the human scale of the three, four- and five-story buildings creates a neighborly atmosphere. Brooklyn Heights has very few high-rise buildings. Among these buildings are 75 Livingston Street, Hotel St. George, and the Concord Village co-op development on Adams Street. Additionally, Jehovah's Witnesses had its world headquarters in the northern part of Brooklyn Heights at 25 Columbia Heights. The organization restored a number of historic buildings to house their staff, including the former Hotel Bossert, once the seasonal home of many Dodgers players, on Montague Street. In 2010, the organization announced plans to begin selling off its numerous properties in the Heights and nearby downtown Brooklyn, given that it plans to relocate itself in upstate New York. The executive offices of the Brooklyn Dodgers were, for many years, located in the Heights, near the intersection of Montague and Court Streets. A plaque on the office building that replaced the Dodgers'