This work of engineering is imbued with elegance and ingeniousness.

In one of the world's smallest countries, a royal's personal winery is open to the public.

Browse through a century of this principality's first popular export.

The oldest surviving wooden bridge over Rhine lets travelers cross easily from Switzerland to Liechtensten.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

This private residence was the template for one of the most beloved television homes of all time.

San Francisco's newly reopened hands-on science museum.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

A man-made island in scenic San Francisco Bay.

Beneath the southern end of the Golden Gate Bridge is the “Gibraltar of the West Coast,” a fort built to protect the San Francisco Bay from naval attack.

Home to an apple tree that can produce 25 different varieties of fruit.

The ruined doorway is a portal to the building's turbulent and torturous past.

Legend says this sacred tree was a gift from goddess Athena.

A sharp sculpture made of thousands of pieces of jagged glass.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

This colorful gate stands as an entrance to the walled city of Old San Juan.

A Lovecraftian altar of nightmarish bronze chairs sits ominously on a boardwalk in Puerto Vallarta.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

Semaphore saints, a golden dragon's head, and a stone carved with religious warnings all call this cathedral home.

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

The legend of a monkey that was hanged as a spy has inspired not only a football team name, but a successful mayoral campaign.

Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

It appears as if a man is standing behind this giant airport clock, painting the hands in real time.

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