A Manhattan office building is home to the world’s largest chess board.

A miniature rainforest is growing inside of a Midtown Manhattan office building.

In the back of a nondescript sports bar is a museum-worthy mural by legendary cartoonists.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Rat sculptures try to infiltrate the Graybar Building in an architectural tribute to New York City's nautical history.

The famous facade of Grand Central Terminal hides a regulation tennis court—and it's not the first one.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

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

Traveling this mountain pass reveals quaint stone buildings, stunning Irish scenery, and a bridge said to grant wishes.

For more than two centuries, this family-run establishment has been serving up some of Ireland's best oysters.

A hugely vast Irish landscape of barren rock that stretches for miles.

This singular Irish dolmen is more Frank Lloyd Wright than upright stonehenge.

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

This natural sea arch highlights Ireland's rugged coastal beauty.

This controversial Irish show cave is home to a massive formation known as the Great Stalactite.

A small memorial commemorates a man who died at Kilkee Cliffs.

This futuristic airport terminal was abandoned for decades before reopening as a hotel—with a vintage plane of its own parked out back.

This striking arch, one of the first architectural elements constructed in Prospect Park, was recently restored to its original glory.

This neo-Gothic former auto showroom is one of the few remaining reminders of Brooklyn's "Automobile Row."

This secluded ruin was once a home for exotic plants.

The site of a fallen tree that protected Americans from British forces during the American Revolution.

You can still ride this 100-year-old work of art in Brooklyn's largest public park.

A tree that grows parallel to the ground was declared Brooklyn's "crowning curio" by the poet who saved it.