This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

The blinking light atop the iconic landmark has been sending secret messages for decades.

A collection of artifacts from Maryland's maritime past.

A museum dedicated to exhibiting remarkable outsider art.

One of the oldest producers of hand-folded fortune cookies still uses its original secret recipe.

A 200-year-old bar with a cheeky name claims to have served Edgar Allan Poe his final drink.

The design of this historic domed church was influenced by Thomas Jefferson and intended as a statement of religious freedom.

Baltimore's classic clock tower was once topped by a rotating, 20-ton medicine bottle.

One of the best examples of Art Deco architecture in the United States.

One man's remarkable private collection of art from around the world.

Hidden beneath a beautiful overlook you’ll find the history of the city depicted in comic strip format next to a pay toilet.

The corpse bride of Portugal.

A hidden three-foot-wide house separates these two regal churches.

This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

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

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

Hollywood's oldest hotel is the site of the first Academy Awards, the birthplace of Marilyn Monroe's career, and the home of Montgomery Clift's ghost.

This grand gothic brewery has been pumping out suds for over a hundred years.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

Home to items never before seen by the public.

The site of the climactic scene from the classic horror film is now a historic landmark.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

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