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

This opera house along the banks of the Connecticut River has two Tony Awards to its credit but it’s never staged a single opera.

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

The oldest place in Hartford is a cemetery with thousands of bodies stacked beneath the grass.

An abandoned gun-funded 19th century utopia.

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

The ancient past meets the retro-future at these dinosaur tracks that are protected by a geodesic dome.

While many places make the claim, the Library of Congress says this restaurant is the birthplace of the hamburger.

137 graves holding New England's earliest residents.

Panoramic views of the city of New Haven and the Long Island Sound, with a side of history.

It looks like a whale, it's part of Yale, and it's best-known by a nickname you can probably work out for yourself.

Three hundred years of preserved Spanish colonial history in San Antonio.

Continuing the tradition of the dime museum in style.

A lion given to the prime minister somehow got stuffed and sent to Florida.

The Magic House provides a beautiful and creative environment for curious youngsters to get their knowledge on.

What was once a presidential estate is now an exotic menagerie and home to the Budweiser Clydesdales.

This titanic oil company sign is a reminder of the Americana boom of the 1970s and also its commoditization.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

This is not your typical jungle gym.

An 18th-century Spanish watchtower made entirely of seashell and concrete.

Less a museum than a bizarre fantasy world created by artists and engineers.

It's a pretty creepy lock-up.

The modern birthplace of Irish freedom.

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