This environmental engineering marvel keeps salt water from the Elizabeth River.

This tree is a living witness to the beginning of the Civil Rights Movement.

The maritime museum that boasts the largest nautical library in the western hemisphere.

A collection of vehicles across American military history.

Dine like an American revolutionary at Colonial Williamsburg.

Enjoy dishes that founding fathers once ate at this Colonial Williamsburg pub.

This museum explores the grim reality of life in the earliest British colonies in America.

Home to the organ played at General MacArthur's funeral.

Giant busts of 42 U.S. presidents are sitting in a field in Virginia.

A museum in the heart of Virginia peanut country devoted to the humble goober.

Northern Ireland's Brobdingnagian stepping stones.

This museum is dedicated to the most famous Irish writers in history.

This statue celebrating everyday life in Dublin has a few unsavory nicknames.

A museum that cashes in on its infamous little people while teaching you a thing or two about the Irish fey.

Experience what life was like in Ireland during the Viking and medieval ages.

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

This colorful and fiery mural depicts the Irish folk story of the beloved hero Cuchulain.

More than 5,000 artifacts donated by the people of the city, plus a room entirely devoted to the band U2.

The oldest public library in Ireland.

An enigmatic monument to the Irish revolutionary who plotted an uprising against British rule.

These gigantic skeletons tower over visitors and provide insight into the creatures that once ruled over Ireland.

Dublin's "Dead Zoo" serves as a window to Victorian museum design.

The 19th-century pharmacy (now a used bookstore) was featured in James Joyce’s "Ulysses," and has changed very little to this day.

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