Rome's semi-secret peephole vista is also a former Crusader stronghold.

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

The hidden offices underneath Memorial Bridge have been locked up since 1976.

Watch cheese-flipping robots in action at this factory and museum.

A simple tribute to the microscopic arachnid that gives its juices and its life to help make a speciality German cheese.

A 22-million-year-old sandstone cave is a natural habitat for award-winning cheese.

This unassuming cheese empire in rural Oregon churns out more than 150,000 pounds of cheese each day.

Order cookies baked by cloistered nuns in a 400-year-old monastery.

This medieval cathedral houses stained-glass windows featuring saints and pretzels.

A stonemason's hilarious revenge came in the form of this peculiarly positioned gargoyle.

These paved rills bring freshwater into Altstadt and could spell wedding bells for whoever stumbles into the waters.

A series of haunting wooden totems are hidden in the woods surrounding a German environmental center.

An interactive exhibition space dedicated to the kinetic sculptures of Swiss artist Jean Tinguely.

The most impressive of Basel's three remaining city gates.

Along the Rhine, about a mile from the historic Munster, learn the heartrending story of two lovers torn asunder, cast into unknown layers of time and space.

This artistic fountain display pays homage to this area's theatrical history.

A futuristic rocket marks the spot where three borders meet.

The smallest museum in Basel, Switzerland, is a two-foot-by-two-foot window in the door of a 600-year-old house.

This magical oasis in East Texas is one of the most biodiverse acres in the country.

The artist and his brother are buried in a landscape straight out of a van Gogh painting.

The centerpiece of the Delta Blues Museum is a wooden sharecropper’s cabin that once housed a titan of blues music.

An artist weaves "wooden quilts" with scraps salvaged from his Katrina-damaged home in Tremé.

Once the most densely populated place in the world, this island is now a ghost town.

This bakery sells traditional Māori sourdough.