The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Avoid gangster interaction while window-shopping.

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

A quiet and contemplative oasis in the middle of New York's bustle and riot.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

America's greatest forgotten garden and the former stomping grounds of Son of Sam.

Cryptic messages embedded in the New York City sidewalk.

The former hotel where Tesla invented the radio.

The one-time epicenter of American songwriting is now a little remembered Manhattan commercial block.

The one-time office of the architectural firm that ushered in the Gilded Age is now a Club Monaco.

This monument to a veteran of the Mexican-American War is one of only two in Manhattan that serve as an actual mausoleum.

The oldest living tree in Manhattan comes shrouded in sinister legend.

Reproductions of nine banned oil paintings coyly hidden behind a curtain in a New Mexico conference room.

Love, knishes, and best wishes from this legendary Lower East Side bakery.

Located in the thermoelectric factory that once powered the entire city, this Portuguese museum is shockingly fascinating.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

A spiritual vortex among the red rocks in Sedona.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

What's left of the ruins of the 1893 Columbian Exhibition, or World's Fair, also known as the White City.

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

Soaring over 6,000 feet in the Bavarian Alps, this beer garden was once Hitler's 50th birthday present.

Copenhagen's celebrated theme park and gardens.

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