A museum designed by and dedicated to P.T. Barnum in the town where he is buried.

The oldest still-operating tavern in the United States was once owned by a pirate.

The idyllic colonial home of the artist behind the famous portraits of George Washington and Thomas Jefferson.

The only surviving fragment of the lost Narragansett Pier Casino.

Rusting, graffiti-covered tanks litter the beach of this island, once used by the U.S. military for target practice.

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

For over 30 years the walls of this Harlem schoolyard have been a gallery of street art by "Kings and better."

The "Seinfeld" diner.

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.

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

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

The world's largest public collection of PEZ memorabilia.

Quirky castle designed by the American actor best known for portraying Sherlock Holmes on stage.

One of the oldest carousels in the United States is still running in the coastal village of Watch Hill.

This lighthouse was witness to the end of WWII hostilities and now collects creepy cairns.

Three and a half miles of cliffs, rocky beaches, Gilded Age mansions and 40 Steps to nowhere in particular.

Dedicated to the explorer who opened Japan to the West.

Mysterious stone tower featured in many alternative histories of the New World.

Unicorns, elephants, and bears, oh my!

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

An Irish church where an 800-year-old mummy is reaching out of his coffin as if to shake hands.

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

American artist J. Alden Weir purchased this 60-acre estate for $10 and a painting.