A beautiful geyser under environmental threat.

This medieval cathedral houses stained-glass windows featuring saints and pretzels.

This Late Gothic building that once housed Erasmus is now known as the filming location of "Suspiria."

These paved rills bring freshwater into Altstadt and could spell wedding bells for whoever stumbles into the waters.

A small park on Bourbon Street features life-size bronze statues of New Orleans musicians.

This cathedral dedicated to Louis IX, sainted King of France, holds many secrets.

Once the site of a Native American harvest festival, this humble clearing later played an invaluable role in the birth of jazz.

If you visit Santa's village, you can get your passport stamped to show you crossed into the Arctic Circle.

A little-known sculpture park of contemporary environmental art in a Lapland forest.

The world's first purpose-built indoor shopping mall opened in Sweden in 1955.

Stockholm's narrowest alley is barely over two feet wide.

Stockholm's tiniest statue is of a small boy looking at the Moon.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

An eerie, derelict amusement park in Berlin.

Berlin's old airport.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

One of the few remaining American elm trees in New York’s Tompkins Square Park was the birthplace of a new religion.

The first piece of public art dedicated to LGBT rights.

A curious fountain that has no water and includes Satan, a crab, and 9 giraffes.

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

This enormous Hindu temple in Queens serves incredible dosas in its basement canteen.

Read a book next to a Midtown waterfall.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.