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

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

Copenhagen's celebrated theme park and gardens.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

Chicago's Navy Pier on Lake Michigan was a training hub for aircraft carrier pilots during WWII.

Elevated freight railway turned wildly successful urban park.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

Historic Hull Street was actually the first street with a proper name in the Boston area.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

Cold war icon and onetime "hole" in the iron curtain.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Home to items never before seen by the public.

A display of magnificent stained glass windows is the first exhibit of its kind.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Once a black market electronics marketplace, now an otaku shopper's paradise.

Peace Park and the Atomic Bomb Dome.

This 700-year-old street food market features baby octopus and soy donuts.

A plaque marks the site directly below the mid-air detonation of the atomic bomb over Hiroshima.