This Scottish bridge seems to compel dogs to leap to their death.

This bridge provides safe passage for squirrels.

The first neighborhood to implement the Garden City model in its suburban planning.

The Byzantine, pre-Columbian, and medieval art at this stately mansion are some of the most under-appreciated collections in D.C.

This medieval Italian village was transformed into an architectural marvel by the famous "Papessa" Donna Olimpia.

The university library shaped like a giant piece of Swiss cheese.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

This singular art museum in São Paulo is unique inside and out.

Designed by Maya Lin, the memorial honors 41 individuals who died fighting for equal rights between 1954 and 1968.

This memorial honors thousands of enslaved Africans and their descendants who died in colonial New York.

The historic “pink house on the hill” is an architectural gem that now serves as a center for water conservation.

The building's fluid, wavelike walls are a true feat of architectural ingenuity.

Julia Morgan's Moorish-Gothic labyrinth of fountains, trees, natural light and Oakland's notable dead.

The unbelievably opulent home built for an infamous newspaperman.

One of the greatest boxers and humanitarians to ever live chose his hometown as his final resting place.

Mine your own precious stones.

With a crest near 10,000 feet, this treeless fault-block mountain in eastern Oregon provides stunning views and spectacular glacial landforms.

At the base of Steens Mountain resides an otherworldly desert.

On East Burnside, a 24-hour vending machine distributes world-class pastries.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

This 80.33 troy ounces of solid gold is believed to be the largest nugget from Oregon still in its original form.

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

The trunks of 3,000 year-old trees lurk beneath the surface of this crystal clear lake in Oregon.

No one knows how this Pacific Northwest spruce tree came to have so many trunks.