A mine in the Sierra Nevada that produced nothing but barren quartz.

These animal carvings stand as a representation of India and Britain.

A permanent outdoor art installation made up of more than 100 mushroom-shaped lights.

Australia's oldest artists' colony.

Thousands of bottles that have held everything from poison to perfume make up the collection of this small museum.

Don't get it twisted: This is the oldest pretzel bakery in the United States.

Once a resting spot for King Fernando VII.

Home to a forest of whimsical pygmy Coast live oak.

This historic pink parlor keeps Phoenicians cool with homemade, retro ice creams.

This museum explores the history of the city's public transportation. Its collection includes the world's oldest preserved electric trolley car.

Known as the Casa de las Siete Chimeneas, this haunted 16th-century manor has a dark, mysterious past.

This free museum is building a collection of books that are banned, censored or burnt around the world.

These unique "earth pyramid" clay columns can be found in ravines around the village of Tirolo.

Cloistered comestibles are served with style at this French Orthodox monastery.

America's first National Historic Landmark is a 100-foot tall obelisk and gravesite dedicated to the only casualty of the Lewis & Clark Expedition.

This Great Dunmow pond was a breeding ground for medical leeches, as well as the testing ground for the world's first lifeboat.

This reconstructed Norman castle is the world's most accurate, from location to livestock.

Examine the impact of the horse on Great Plains culture through exhibits on ranching, rodeo, and the Native American way of life.

Famed activist Hellen Keller was involved in the operation and administration of this vacation home for blind women starting in the early 20th century.

One of the "twins" in these falls on the Snake River was sacrificed for hydropower generation in the 1930s.

These petroglyphs created by ancient Arizonians have withstood centuries of exposure to the elements.

The natural history of Utah is on full display inside this museum.

Established over a thousand years ago, this family-run teahouse continues to serve skewers of sweet rice cake to this day.

In the foothills of the lesser Caucasus, a centuries-old fortress still stands.