Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

A preserved college lock-up that recalls a clubhouse approach to discipline.

This Nazi-built amphitheater was constructed on a sacred mountain site used by various German cults.

Europe's largest natural bridge has a 19th century royal chateau built into its side.

Ruins of a German Castle on top of a towering stone pillar.

When the rain falls, this drain system turns into a musical instrument.

Enormous sandstone towers loom within a Czech forest.

What looks like a crashed Zeppelin is actually a bright, airy reading room perched atop a modern museum.

The oldest garden in Prague, once part of an medieval orchard.

This walkway is so narrow it needs its own light to stop pedestrian traffic jams.

This automated sculpture of two men peeing will spell out text messages with their micturition.

A half-buried vehicle in Prague's is the latest iteration in a long-running piece by Czech artist David Černý.

A series of playful yellow penguins share a serious message about the environment.

The colonial city's social history is reflected in its fanciful door knockers.

An unusual and beautiful form of mass transit serves the city's steepest neighborhoods.

The world's tallest palm trees look like the whimsical kind of plant you'd find in a Dr. Seuss story.

This elegant Colombian fortress was one of the torture headquarters for the Spanish Inquisition.

A 10 million-ton rock once worshiped by the Tahamies Indians, accessed by an astounding staircase.

This picturesque mansion has gone from opulent ruin to nature museum.

The shipyards along the outskirts of the Bangladesh capital are a flurry dangerous boat breaking and rebuilding.

Ancient and modern architecture are joined in Louis Kahn's monument to democracy.

Where giant ships go to die.

Space-age minarets towering over Islamabad.

One of the last surviving ancient Buddhist sites in the region, it escaped the brunt of several Hun invasions thanks to its remote location.