This massive water spout has been luring visitors for hundreds of years, some to their death.

Clusters of huge boulders in the Australian Outback.

Come for the flowers, stay for the bats!

This trio of Australian rock spires may have inspired aboriginal legend or just modern tourism.

This historic observatory contains the world's oldest refracting lens telescope.

Nine limestone rock stacks on Australia's "Shipwreck Coast."

One of Australia's largest secondhand bookstores.

Alien rock formations grown from the sands of an Australian national park.

Built over an abandoned train yard, this hidden gem is full of winding paths and offers gorgeous views of Sydney Harbour.

A massive stairway that almost wasn't leads to one of Australia's most scenic vistas.

This gracefully curving formation looks like a massive wave that was suddenly turned to stone.

Once the path of a railway tunnel, now home to thousands of glowing insects.

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

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

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

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

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

The highest peak in Northern Ireland is topped with a stone tower and haunting burial mounds.

A peace symbol in Northern Ireland is among the world's largest hedge mazes.

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

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

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

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

One of the largest lenses of its kind ever created, this former ship beacon has been brought down to Earth.