Elegant architecture like churches and clubs were constructed by John Notman and Frank Furness. The year 1913 brought more changes to the Square's layout when the French architect, Paul Philippe Cret redesigned parts of the Square to resemble Paris and the French gardens. These redesigns include classical entryways and stone additions to railings, pools, and fountains. After World War II, Rittenhouse added to its architecture with modern apartments, office buildings, and condominiums due to the real estate boom. Residential Rittenhouse Square historically housed Victorian mansions but are now replaced with high-rise apartments to accommodate the residents that live there. Shopping has become a popular activity with store buildings taking place of the brownstones along the streets. Historic design remains in Rittenhouse Square today, with prominent buildings in Italianate and Art Deco styles. Journalist and author Jane Jacobs wrote about Paul Philippe Cret's additions to the park that remain there today. Rittenhouse Square has changed the least out of the Squares. Vacant lots were converted to apartments and hotels, and original mansions were replaced with apartments such as Claridge and Savoy. Jacobs focused on sharing two main ideas in Paul Cret's redesign, intricacy and centering. Compared with the other four original squares in Philadelphia, Rittenhouse Square has survived proposed alterations that may have changed both its physical layout and character. In the mid 1900s, conflicts between homosexual and heterosexual communities were common within Center City neighborhoods. Gays and lesbians were found commonly living around Rittenhouse Square and saw the park as a safety zone for camaraderie. For gay men, the park was used as a place to find other men. Hippies and pre-Stonewall gays were also part of their own groups there. Today, the tree-filled park is surrounded by high rise residences, luxury apartments, an office tower, a few popular restaurants, a Barnes & Noble bookstore, a Barneys, a Starbucks that has been the center of controversy for racial discrimination, and a five-star hotel. Its green grasses and dozens of benches are popular lunch-time destinations for residents and workers in Philadelphia's Center City neighborhood, while its lion and goat statues are popular gathering spots for small children and their parents. The park is a popular dog walking destination for area residents, as was shown in the fictional film "In Her Shoes". The Square was discussed in a favorable light by Jane Jacobs in her seminal work, "The Death and Life of Great American Cities".