The only monument to name all of the passengers and crew who died on the RMS Titanic.

These engineering masterpieces are a dominant feature of the Belfast skyline.

A museum marks and documents the site of the Titanic's launch.

The ship built to ferry passengers and goods to the doomed Titanic is now the last remaining White Star Line vessel.

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

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.

The block of aged dairy is probably still edible after 2,300 years in a peat bog.

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

Amidst the bustling streets of Dublin, there is a hushed garden that is dedicated to "All those who gave their lives in the cause of Irish Freedom."

The modern birthplace of Irish freedom.

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

The mummified heart of a saint lives on in this church—after a brief hiatus when it was stolen.

A cenote sitting in the middle of a parking lot shows the Yucatán Peninsula at its most urbanized.

Every equinox this Maya pyramid puts on a spooky ancient light show.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

At least seven hues of blue and turquoise make this freshwater lagoon unique.

Sparkling, calcite-covered skeletons of children who may have been sacrificed to appease an angry god.

This massive Maya archaeological site is home to the tallest man-made structure in Belize.

A 16th-century monastery boasts a lush array of plants native to Mexico’s most biodiverse region.

This elegant Colombian fortress was one of the torture headquarters for the Spanish Inquisition.

A beautiful opera house in the heart of Amazonia has recently restarted performances after a 90-year hiatus.

This striking, two-toned confluence of rivers is visible from space.

A stunning Catholic cathedral built by a curve-loving communist in Brazil’s newly created capital.