The celebrated eyesore created by starry-eyed sweethearts.

According to tradition this is the oldest church in Venice, but its actual age is a mystery.

In the past, Renaissance sex workers were encouraged to entice customers on this bridge.

A sinister pyramid in the Frari contains the heart of the famous neoclassical sculptor.

This deconsecrated church has seen many uses, from a tobacco storehouse to a cinema.

A whimsical bridge adorned with decorative dragons.

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

Belfast's namesake river still winds below the city center, hidden from sight.

It was once nicknamed "the most bombed hotel in Europe."

A sacred well steeped in Pagan roots on the West Coast of Ireland.

A stunning Victorian abbey and walled garden on a lakefront.

At this cozy bar tucked down a hidden Galway backroad, Guinness makes the Gaelic come out.

A moody and picturesque riverside ruin overgrown with vegetation.

Originally built to monitor fishing, this Victorian tower now educates visitors about the local salmon industry.

Certain traditions prevail on the least-visited island of the Aran Islands.

Ireland's most remarkable collection of these curious cone-shaped houses is worth the buzz.

This ancient Irish tower could easily have stood in for Rapunzel's prison.

The modern birthplace of Irish freedom.

A hidden beach at the end of a tunnel of mangrove trees.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

This narrow coastline trail through the dense Kauai wilderness is among the most beautiful and dangerous in the world.

Not quite the menace it once was, this monster still has some chops.