An Irish Memorial commemorating those who perished due to potato blight.

One of the oldest of its kind.

George Martin's Caribbean recording studio now rots within the shadow of an active volcano.

A prison with a more than 200-year history.

An ancient Greek physician is honored as a god at this hole-in-the-wall shrine.

Leave a trinket at this artistic collection of mailboxes.

A natural dome made of volcanic glass in Inyo National Forest.

One of the last active volcanoes on the Eastern seaboard.

Developed by focused shutterbugs, this museum exposes visitors to more than 6,000 different cameras.

A city continually buried under the ash of a volcano that has been erupting for more than 15 years.

On Hurricane Island, a former ghost town has been transformed into a forward-thinking research center.

Trinkets and toys lovingly handmade by maximum security prisoners.

They call buildings like this "mimetic architecture," but nothing has ever mimicked the taste of Moxie.

This museum explores the history of policing and is also home to a very popular taxidermied duck.

East meets West in this Japanese-style garden featuring plants native to Maine’s Mount Desert Island.

A memorial to an ill-fated Holy Land mission once described by Mark Twain as “a complete fiasco.”

A roadside park in eastern Maine first marked the halfway point between the equator and North Pole with a brass pin in 1896.

This medieval "painted village" is famous for its geometric facades.

A series of sculptures beneath the waves promote ocean conservation and support coral reefs.

Every summer local children form "pysja patrols" to save young birds that have wandered from their nests.

Why walk on this historical site when you can zoom down instead?

Hidden in Central Park's Ramble is a troublesome cave buried just beneath the surface.

A toxic ghost town sitting atop a massive coal fire.

The United States Capitol's former columns still stand.