A 19th-century Baja cantina that many say is the birthplace of the margarita.

Legend says one of the world's largest marine geysers is actually a whale that got wedged within the rocks.

Race through the maze, get your name on the sign.

A series of waterfalls and pools that flow through the 'Ohe'o Gulch and into the ocean.

Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

A tunnel of hardened lava along Maui’s famous Road to Hana.

Where royalty waits in the height of luxury.

Three connected pink triangles memorialize persecuted gays and lesbians throughout history.

Amsterdam's narrowest house facade is a monument to 17th-century tax evasion.

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

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

A hidden church in a hidden courtyard tells the story of the Miracle of Amsterdam.

This massive mural by famed pop-artist Keith Haring was hidden for almost 30 years until its 2018 rediscovery.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

The bones of the Biblical Magi traveled to Constantinople and Milan before landing in their current home inside an elaborate golden reliquary in the Cologne Cathedral.

If the tunes of antique organs and musical marionettes don't intoxicate you, the draft beer certainly will.

An unsettling sculpture of a boy hanging out in a street in Ghent has been baffling visitors for years.

Each time a baby is born in Ghent, these streetlights flash in silent celebration.

This narrow Ghent alleyway is an officially sanctioned street art tunnel.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

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

Amsterdam's former hotspot for public executions and dissections.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

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