National September 11 Memorial & Museum

This pretty 17-story Beaux Arts building was completed in 1904 and designed to be New York City's first air conditioned hotel. It was a residential hotel, and housed a number of very famous people, including the Hall of Fame baseball player, Babe Ruth; the Italian tenor, Enrico Caruso; the modernist composer, Igor Stravinsky; the Italian conductor of the NBC Symphony, Arturo Toscanini; and writers Theodore Dreiser and Isaac Bashevis Singer. The building is now a condominium.

This is historic home that was built by local businessman James Bouton in 1891. Eight years later, Conrad Voelcker bought the house, and the Voelcker family lived in the house for three generations. Today, it is a museum, and there is a Victorian garden and a bird sanctuary outside.

The garden is 52 acres and the layout was well planned. It is definitely worth a visit. Designed by the Olmsted Brothers in 1910 and open to the public since 1911, the garden includes an authentic Japanese garden, a Children's Garden, and the Cranford Rose Garden. The garden has the largest cherry blossom trees in one place outside of Japan. There are 42 gorgeous varieties. The Brooklyn Botanic Garden hosts various festivities throughout the year, including Hanami Sakura in May and the Chile Pepper Festival in October.

Kingsland Homestead is a historic home, built by Charles Doughty around 1774. It is now a museum with exhibits about the Victorian era, the slavery in Queens, and how Queens was affected by World War II.

A vintage carousel built in 1908 and situated on this spot since the 1950s, it's the fourth carousel to inhabit this location and is beautifully painted.

Once the Audubon Ballroom where Malcolm X was assassinated with 21 gunshots. Only a part of the facade of the original building remains (Columbia University demolished the building in 1992). The location now houses a memorial to Malcolm X and Betty Shabazz, with a stated goal of advancing human rights and social justice. It also features a 63-foot mural depicting Malcolm X's life.

One of the greatest and most popular collections of modern art, on a par with the Tate Modern in London or Paris's Centre Georges Pompidou. Exceedingly popular so be warned: queues for tickets start early and stretch long. To avoid the crowds, turn up at the door at least a half hour before opening, then take the elevator to the top floor and work your way down. The building is as much a draw as the outstanding collection; possessing arguably the best collection of modern masterpieces world-wide, MoMA houses important art works from Van Gogh, Picasso, Monet, Matisse, Salvador Dalí, Paul Cézanne, Frida Kahlo, Piet Mondrian, and works by leading American artists such as Jackson Pollock, Jasper Johns, Edward Hopper, Andy Warhol, and Chuck Close. MoMA also holds renowned art photography and design collections. In addition to being the crown jewel of modern art museums, MoMA puts on a terrific repertory program in a nicely renovated theater below the museum.

Nature preserve on the South Shore with hiking trails and shoreline access. Fishing is permitted along the beach or the freshwater pond inside the area. Most of the land is minimally developed, and is an excellent place to observe wildlife. An abandoned orphanage on-site, after which the area was named, burnt down in 2000.

A sort of mini forest, described by its designer as a "wild garden," the Ramble is sculpted out of a wooded hillside, with winding paths, rocky outcrops, secluded glades, and a tumbling stream. If one travels through the ramble when the trees are full, it is easy to lose sight of the city's skyscrapers; it's as if you're no longer in Manhattan. The Ramble is also an excellent place to bird watch, with over 250 species of birds that stop here on their migration.

One of the Seven Sisters colleges, and is affiliated with Columbia University.

This pretty building was built as Brooklyn's city hall in 1851 and is still a very significant official building in very active use.

A large and historically important Protestant church and center of progressive social activism. Also neo-Gothic.

The One World Trade Center skyscraper rises 1,776 feet above the street and is the tallest building in the United States (and for that matter, the Western Hemisphere). Despite its colossal size, its simple design allows it to blend remarkably well into the Lower Manhattan skyline. An observation deck on the top floors offers 360-degree views of the city.

Built as a pavilion for the 1964 World's Fair, this science center is now full of hands-on exhibits for the public. Highlights include Sports Challenge, Rocket Park (featuring full sized Atlas and Titan tickets), and a science playground.

From its intersection with Park Row (just east of City Hall) you can walk (takes about 20-30 minutes each way), bike, or drive across the historic and iconic bridge to Brooklyn. The view from the bridge is quite lovely, with excellent views of Lower Manhattan and Downtown Brooklyn and good views of Midtown and the New York Harbor in the distance.