Real bones which are said to have belonged to a Polish dragon.

Baroque celebration of the end of the Great Plague of Vienna.

Two very green residential towers cleaning the air in one of Europe's most polluted cities.

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.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

Macabre astrological automaton clock dating to the late 1400s.

Now a hotel, this former bank was the site of a robbery that spawned a psychological phenomenon.

It houses the remains of a 17th-century version of the Titanic.

Sweden's "good old days" painstakingly re-created in a model village.

The greatest real estate coup of all time.

Avoid gangster interaction while window-shopping.

The competition: breathe deeply as long as you can.

During the 19th century, you could pay for violence off a prix fixe menu on this Manhattan street.

Order scoops of pandan, lychee, and black sesame at this family-run institution.

Birthplace of the "Cat in the Cradle" and a cluster of iconic, original windmills that let the Dutch tame the seas.

The largest 19th century panorama in the world still in-situ.

One of few lasting examples of the brief octagon craze that developed into folly.

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

An artist's cute bronze subway sculptures belie his violent artistic past.

A very classy 1920s-era bar right in Grand Central Station.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

Lie in a hammock where George Washington stood.