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

Built hundreds of years ago this downtown iron barrier once protected a much despised king.

Magnificent New Deal Murals evoke a time when New York City harbor was one of the world's greatest and busiest ports.

Once the tallest building in the world and the site of “the highest dinner ever held in New York” this building now holds the most expensive penthouse in the city.

A terrific purveyor of natural history objects and curios.

The site of the deadly Triangle Shirtwaist Factory Fire.

This impressive mansion in Vinegar Hill has some mysterious details in its architecture.

Walk into the 19th century without leaving Brooklyn.

A decommissioned military complex that's now a modern industrial park.

What was once a vast naval cemetery is now home to nesting birds and pollinating bees.

One of the last surviving buildings of a once large and thriving Chinatown.

A hotel and restaurant serving as the mecca of kitsch.

A nondescript Seattle restaurant inherited a piece of European history.

Pause for an afternoon fika with sublime Scandinavian cakes and pastries.

The spur that wouldn’t die.

This 18-foot-tall public art installation is another of sculptor Thomas Dambo's trolls.

This futuristic bridge is one of the longest self-anchored pedestrian bridges in the world.

A rotting tree in the middle of Seattle doubles as an elaborately-controlled art piece.

The tech giant built three enormous glass orbs in Seattle so employees could work inside a rainforest greenhouse.

This historic building provides a powerful glimpse into the lives of Japanese Americans forced to relocate during World War II.

Remnants of a forgotten 1920s speakeasy and Prohibition-era murals were discovered in its basement.

These lush groves of fan palms rise up like oases out of southern California's Colorado Desert.

A futuristic-looking beach house built for the owner of a snack food brand.

Pick up all of the cosmic knick-knacks under the sun or take a creative writing course, all offered in this novelty storefront.