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

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

Tiki luxury on Nob Hill.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

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

Supposedly this Ethiopian chapel holds the Ark of the Covenant, guarded by virgins who cannot leave the building.

Massive stele returned to Ethiopia after 70 years in Rome.

An otherworldly restaurant perched on the edge of a jagged cliff next to a medieval holy city.

Ethiopia's "smoking mountain" is in one of the hottest regions on the planet and is home to two lava lakes.

The hottest place on the planet.

An Ethiopian "Jerusalem" featuring a church hewn out of a single rock.

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

No two pieces are exactly the same at Portland's hippo-themed hardware store.

10,000 flowered plants bloom in the City of Roses.

This stoic, if derpy, giant stands as a monument to Oregon's statehood and the novelty culture of yesteryear.

A collection of colorful dinosaurs hidden in an actual rainforest.

A massive sea stack famous for its appearance in The Goonies.

The magic's in the hole!

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

A public fountain that spouts "health water" from a nearby spring.

Shakespeare has been brought to life in this open air theater for the better part of a century.

Source for a sizable portion of Egypt's freshwater supply is more than an optical illusion.

Charnel house at the foot of Mount Sinai.