This historic hotel invented the chocolate brownie.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

These ruins have been linked to a sherbet factory that exploded, but the story may be entirely fictional.

Instead of faces, these sculptures have barcodes—statements on societal dehumanization.

A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.

Only known mainland rookery of the threatened Stellar sea lion.

An architect's childhood fantasy treehouse made real.

A modern frieze of ancient Grecian mythological figures playing a national pastime.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

This architectural oddity is an oasis of green on the outskirts of Valencia.

Granting the right of way to ships over surface traffic since 1917.

This working class sculpture pounds his hammer all the livelong day.

The spur that wouldn’t die.

The four tall pillars once marked the entrance of the historic Seattle church that fought for women's suffrage and civil rights.

In this subterranean brick arcade, a small shop continues the ancient practice of bookbinding.

A commemorative mural in this tiny Ballard park honors the neighborhood's rich Scandinavian ties, particularly with Seattle's Norwegian sister city Bergen.

This Puget Sound military post has a long, turbulent history as a gateway to the Pacific.

Allowing humans and fish alike to migrate from freshwater to saltwater and back again.

Statue of Lenin, from Cold War era Czechoslovakia, now in a neighborhood of Seattle.

42nd story Pyramid shaped penthouse tops Seattle's oldest skyscraper.

This grand old 80-foot sequoia towers above the buildings in the city’s retail center.

One of the only cooperatively owned bars in the nation wears its eclectic history on its walls.

From a neon Rapunzel to a bike traffic meter to a street fair color scheme, the most opened drawbridge in the US is a veritable art gallery.