In the closing decades of the 19th century, New York underwent a profound physical and cultural transformation. Fueled by the wealth of the exploding financial and manufacturing sectors, the city rapidly evolved into a world-class metropolis. The bold ambitions of civic and business leaders, architects, and engineers of the era manifested in landmarks such as the vast Cathedral of St. John the Divine, the stately U.S. Custom House, the towering Municipal Building, and the original terminus of New York City’s first official subway line—the ornate City Hall stop. The sweeping interior spaces common to all of these structures, and hundreds of others, depended upon a venerable Mediterranean building technology adapted to contemporary American construction: arched tile ceilings—or vaults—that were not only self-supporting but could also bear the weight of floors or roofs above them. These vaults were designed and built by a single New York firm, founded by Spanish immigrant Rafael Guastavino (1842-1908) and later headed by his son Rafael Jr. (1872-1950). The Guastavinos’ patented system for building domes and vaults involved multiple layers of thin ceramic tiles bonded with quick-drying mortar. The resulting structures were not only exceptionally strong, but also lightweight, easy to build, and inherently beautiful, thanks to intricate patterns of exposed tile that formed finished, decorative surfaces. Guastavino vaults figured prominently in more than 1,000 projects across the nation, including 200 in Manhattan alone. During its 73-year history, the Guastavino Company helped build some of the most impressive interior spaces in America—veritable palaces for the people. This list based on MCNY's exhibition Palaces for the People, contains many of Guastavino's masterpieces in the five boroughs, both those that remain and those that have been lost to the wrecking ball.

New York City is full of Revolution-related history and sites, but you need to know where to look. We’ve compiled 5 key places to visit and discover the American Revolution history that’s all around us. Check out these sites below in a family-friendly tour. As you make your way around town, be sure to take recreations and pictures and tag us on Twitter or Instagram at @nyhistory.

New-York Historical Society STATUS Designated Individual Landmark ARCHITECT: York & Sawyer DATE: 1903-08 The facade is divided into very severe end pavilions bounding and containing a colonnaded central section which, though treated with great discipline, is nobly ornamental. At the second floor level, a wide horizontal band course runs around the entire building, creating a ledge in the slightly recessed central portion of the structure. Resting on this ledge, and of great compositional importance, are the eight three-quarter engaged Ionic columns of the colonnade. These support a cornice which, apart from the handsome bronze grille-work of the large side windows, is the only element of the building which may be said to be richly ornamented. The pedimented heroic size main portal on Central Park West makes a very grand entrance to the building.

Take a walk in the beautiful Upper West Side. Start at Columbus Circle and discover the cultural and religious landmarks and the extravagant apartment buildings of this affluent neighborhood.

The New-York Historical Society was established in 1804 as New York’s first museum. Its eleven founders all lived through the turbulent years of the American Revolution and the British occupation of New York. These men believed that New York’s citizens needed to take decisive action to preserve eyewitness evidence of their own historical moment, which they recognized as important, fearing “dust and obscurity” would be the inevitable fate of accounts and artifacts if left in the hands of private individuals. “Without the aid of original records and authentic documents,” they declared, “history will be nothing more than a well-combined series of ingenious conjectures and amusing fables.” It is in this tradition that New-York Historical has moved forward into the 21st century, offering to visitors on-site and online a vast collection of art, objects, artifacts and documents and an ongoing collecting program that aims to facilitate a broad grasp of history’s enduring importance and its usefulness in finding explanations, causes, and insights.