The enchanting archway is the only surviving portal into Dublin’s lost medieval wall.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

The only Native American museum along the Oregon Trail, run by the peoples who have lived on the land for generations.

Located in a heritage building, this Mickey D's is missing its Golden Arches.

Underground attraction offering tours of the foundational ruins of a church nave that collapsed in 1674.

This Netherlands museum holds a gloriously mechanical collection of ornate musical automata.

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

Museum preserving torture methods from the past.

A floating cat sanctuary on an Amsterdam canal.

This bird-loving brewery is situated in an old municipal bathhouse, nestled beside a 300-year-old windmill.

These public toilets also provide entertainment for visitors to Amsterdam’s Red Light District.

In the days before house numbers, these colorful signs held clues about various buildings' purposes.

The facade of this bank has changed little over the centuries, including its unique welcome sign.

This cheese shop also houses a museum devoted to Dutch dairy.

Tucked in the back of a flower shop, its collection details the fascinating history of the Netherlands's iconic symbol.

The grave of the famous painter is marked by a simple stone in the ground.

Now a museum, this building was once a 14th-century monastery and the place where the founder of the Dutch nation lived and was assassinated.

This windmill has been grinding pigments for traditional paints for more than 200 years.

Colorful and chaotic stacked hotel in North Holland.

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

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

Amsterdam's former hotspot for public executions and dissections.

The former headquarters of history's oldest megacorporation.

The former home of a mad diplomat is said to still be marked in bloody, arcane scrawls.