The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

The ancient tomb acts as a calendar that keeps perfect time.

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

One of Ireland's most infamous prisons for rebels including men, women and children.

Just a few miles off the western coast of Ireland lies an isle steeped in Irish literary history.

A glimpse into the lives of the the Miwok and Paiute people in Yosemite National Park.

Dedicated to the Father of the British Fire Service.

A 19th-century perch for spotting sailing ships now boasts one of the most iconic views in the Southern Hemisphere.

Artist Scott Hocking took a dilapidated 1890s barn to create his massive "Barnboat."

A mountaintop shrine named for the road to heaven.

Considered an architectural abomination by some, this metal-clad building is known as 'little red riding hood' by locals.

Monumental sculptures of Patrick Amiot, constructed from debris, detritus, and determination.

The second-largest giant sequoia in the world.

The story behind this beloved toy—named for Theodore Roosevelt and owned by his grandson—is more complicated than you might guess.

How did an Australian statue of the Bard of Avon end up in the Hungarian capital?

A poignant museum dedicated to the history of the Dutch resistance against Nazi occupation

Sail in for a ’dam good slice.

This unattributed sculpture in Amsterdam is hiding in plain sight.

Famed for its pie, this eatery has a hidden tunnel that allowed Catholics to secretly walk to church during the Reformation.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

Amsterdam's former hotspot for public executions and dissections.