This Bronze Age tomb is the centerpiece of a clearing within a beautiful Irish forest.

A book bound in the skin of an infamous criminal, along with countless other specimens.

Accessible only at low tide, the deserted island is dotted with World War II ruins.

This massive monument has been telling the time for 150 years—at a slight angle.

This hidden museum examines the complex history of the country's law enforcement.

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

The last Victorian market in Belfast.

A giant sculpture of the legendary "Salmon of Knowledge" celebrates the return of fish to Belfast's River Lagan.

These barriers stand as stark reminders of Northern Ireland's troubled past.

For part of the year, this innovative greenhouse is painted white to keep the plants from getting scorched.

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

This Victorian-era public house has set the standard for pub-style elegance for over a hundred years.

A deer-headed statue that brings together a 12th-century legend and big wave surfing.

This ship offers visitors the chance to spend the night aboard a former floating hospital for fishermen.

A glacial valley filled with silver beech trees in the mountains of Portugal.

These rock drawings in the Côa Valley also create an ancient optical illusion.

Bits of flat terrain surrounded by cliffs make one of the most beautiful landscapes in the Azores.

For more than two centuries, the canopy of this venerable tree has been a haven for songbirds and lovers.

The ancient sauropod tracks found in this former quarry are some of the largest in the world.

One Portuguese poet described this cape, the westernmost point in mainland Europe, as "where the land ends and the sea begins."

The "Little Ones," show Portugal in full miniature splendor.

Come for the bread-themed puppet show, stay for the buffet.

One of the world’s longest pedestrian suspension bridges.

A 19th-century mansion houses the largest collection of gin in the European Union.