This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

Elevated freight railway turned wildly successful urban park.

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Tiny castle in the middle of the Rhine made you pay to pass.

Tiny memorials honor individual victims of the Holocaust.

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

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

One of two side-by-side totem pole parks dedicated to educating visitors on Tlingit history and culture.

A tiny wilderness cemetery commemorates the deadliest episode of the Klondike Gold Rush.

A rare chance to get up close and personal with a 13-mile ribbon of ice near downtown Juneau.

A historic freight system that found the true gold rush is in tourism.

The king of U.S. high points towers over every other peak on the continent.

"Girl in a Wetsuit" is what happens when a sculptor has to find a way around a 100 year old copyright.

This expansive bridge in the Canadian wilderness was originally just built for friends.

The narrowest street in Canada was once a spot for dastardly doings, now a historic piece of Chinatown.

This historic Victorian hotel has a scandalous history of affairs and murder.

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

Leave a button on the jacket of this iconic Seattle clown.

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

Activists are fighting to preserve these unfinished highway ramps as a tribute to the citizen revolt that halted their construction decades ago.

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.