A crumbling hospital from the 1850s on Roosevelt Island.

Constructed in the 1920s, this former pencil factory is now an office building.

The evocative ruins of a 1,000-year-old hill fort lie within a popular tiger reserve.

Thailand's distressed elephants find peace at this Chiang Mai sanctuary.

This stunning French estate was so lavish that it landed its original owner in jail for the rest of his life.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

The celebrated eyesore created by starry-eyed sweethearts.

Rummage through this sunken ship, but leave your scuba gear at home.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

The walls are decorated with whimsical murals painted by the creator of the Madeline franchise.

A bit of retro transportation flair preserved in the world's largest department store.

Lie in a hammock where George Washington stood.

This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.

The "Seinfeld" diner.

The oldest surviving synagogue in New York City is now a soaring art space.

Great place to have a drink and a bite to eat in an atmosphere laden with New York's Bohemian past.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

Become a prohibition rebel.

A semi-scholarly approach to sex.

Elevated freight railway turned wildly successful urban park.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.