An acoustic anomaly with a mysterious cause.

Around half a million years ago, these magnificent columnar basalt cliffs were formed from cooling lava.

No Gordon Lightfoot song, only a barebones monument to greed.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A beautiful geyser under environmental threat.

This rustic old building is said to be the most photographed barn in America.

Vienna's diversity-themed traffic lights were inspired by the Eurovision Song Contest.

The fairy tale castle of the "fairy-tale king."

King Ludwig I's collection of beautiful women.

Go surfing on this urban wave, "hacked" by local surfers.

The footprint of a frustrated devil in Munich's Cathedral.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

These bronze pamphlets remember a remarkable group of Germans who fearlessly opposed the Nazis in the very center of their power.

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

The patron saint of spinsters grasps a container of dried blood.

A historic, century-old house plopped along the perimeter of Houston's ballpark.

Alexander Hamilton’s creation caused quite a bit of controversy.

Shakespeare has been brought to life in this open air theater for the better part of a century.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

10,000 flowered plants bloom in the City of Roses.

The world's smallest park was dedicated in 1948 as the only colony for leprechauns west of Ireland.

Despite a legend that says this highest peak in Oregon was climbed in high heels scores of people have died on its slopes.

You might know it as the Overlook Hotel, but the inside is not going to be familiar.

This extravagant Art Nouveau rest stop features a million-dollar view of the Columbia River.