In the 1940s, Italian architect Mario Cavallè built a dozen of these round homes in northern Milan.

Third time's a charm, or in this case, two testicles are.

See what remains of a once grand ancient Roman circus.

A brutalist gem towering over the heart of Milan.

This camera store in Milan holds one of Europe’s largest collections of luxury-antique cameras.

Sip a Negroni Sbagliato in the bar that invented it.

This small Milan street is filled with colorful homes and a rich history.

This Volcano-like rest area was designed by architect Giulio Ceppi built according to energy efficiency and ecological footprint standards.

This pedestrian footbridge honors Pero Jones, an enslaved African who lived in Bristol.

A quaint hamlet of nine cottages around a small green near Blaise castle.

The secret medieval communication system will whisk your words above the noise of the crowd.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

The world's oldest hologram gallery and the labyrinthine laser laboratory of a holography pioneer.

Nikola Tesla's former home contains an homage hidden from plain sight.

Read between the lines of the subway map to find the hidden abandoned Civil War fort.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

The one-stop shop for all of your superhero (or evil arch-nemesis) needs.

A semi-scholarly approach to sex.

Elevated freight railway turned wildly successful urban park.

Arthur, Merlin, and Guinevere are among the largest and oldest satellite dishes on the planet.

400-year-old garden, restored to beauty.

This floating sculpture of ice is a poignant reminder of nature's power.

Home to three historic ships from the age of Vikings.

The design of this beautifully crafted building was inspired by Norwegian glaciers.