Park Slope Historic District

Small and gem-like, New York's "oldest, newest zoo" opened in its current guise in 1988, although animals in various zoo incarnations have resided here since the 1860s. This zoo is fairly small and doesn't have as many large animals as you might expect, but this zoo does include sea lions, snow leopards, penguins, polar bears, monkeys, red pandas and exotic birds in pleasant exhibits. Next door is a children's zoo, covered in the cost of admission, which has a barnyard animals you can pet, a duck pond, and lots of play areas for kids.

Affiliated with Columbia, Teacher's College is an architectural gem with its block length Beaux Arts and neo-Gothic façades.

A branch of the Smithsonian Institution, the Cooper Hewitt is devoted to over 240 years of contemporary and historic design, with changing exhibits.

This neo-Romanesque fairy castle was built in 1891, and a northern addition in very similar style was built in 1933. The older building is a busy post office serving Downtown Brooklyn and the northern addition houses the United States Bankruptcy Court for the Eastern District of New York.

Another conservatory of music.

The first museum in the U.S. devoted to artists of African descent. Temporarily relocated from 144 W 125th St building for construction of new museum building.

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.

With New York City growing and not enough space in the City Hall building, this 40-story structure was built to meet the space demands of the city government. Completed in 1915, it is a massive and very grand building with the gilded statue of a woman standing atop the building's spire.

Probably the most famous of the Guggenheim foundations (others found in Bilbao and Venice), which hold avant-garde modern art by artists such as Kandinsky and Mondrian, the New York branch is housed in a unique and famous building designed by Frank Lloyd Wright and rendered in a rounded, organic form and completed in 1959. Be sure to take the elevator to the top floor, then follow the spiral viewing floors downwards to the street level. One of eight buildings by Wright to be listed as a world heritage site.

A memorial to the Holocaust.

Inwood Hill Park contains the last tracts of virgin forest in Manhattan. Many arrowheads and other artifacts of the former Native American occupants of Manhattan Island have been found in this park.

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.

The original subway station, and quite a marvel to witness--the chandeliers and ornate tiling are a sharp contrast to the nearby Brooklyn Bridge-City Hall station. There's one catch, though: it's been closed since 1945. However, you can see it by staying on the downtown 6 train after its last stop Brooklyn Bridge-City Hall; it will turn around in the old station. This is the one place in the system where this is allowed, and the announcements reflect that. The Transit Museum (in Downtown Brooklyn) offers occasional tours as well, which allow you to actually walk around the station, but you must be a museum member and a US citizen, making this an impractical choice for most visitors.

See the Rockettes, another show, or just tour the famous Art Deco masterpiece.