The first park built over a freeway is a brutalist masterwork.

This former coal gasification plant found a curious second life as a popular public park.

Keeping Ballard's heritage alive with delicious, lightly battered Alaskan wild cod.

Residents of Fremont in Seattle have considered it the center of the universe since the 1970s.

This unique Seattle structure was designed to be the greenest commercial building on the planet.

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

The monument's pointy aluminum tip has been melted down by repeated lightning strikes.

There's a 12-foot-tall replica of the Washington Monument hidden under a manhole nearby.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

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

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

A daring D-Day assault by U.S. Army Rangers is commemorated atop the high cliffs of this strategic point.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

Hundreds of prehistoric stones, arranged in perfect lines in a French field.

Historic medieval fortified city in southwest France.

A 14th century bridge built as a fortress, where the devil lurks on one of its towers.

Ancient paintings known as the "Sistine Chapel of Cave Art."

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

Masterful ceramic fountain and map of the Pacific Basin.

An enormous artwork that colorfully celebrates over 150 years of US military achievements.

Condemned US Navy seaplane control tower turned officers’ club sits atop Yerba Buena Island.

A man-made island in scenic San Francisco Bay.

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

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.