During its heyday, 72 one-ton buckets from this dredge bore into the Powder River excavating vast gold deposits.

This theatre and its amazing marquee harken back to the Golden Age of Hollywood.

Rare and gorgeous birds abound in this protected wildlife sanctuary.

The oldest continuously occupied public building in the United States.

The only Frank Lloyd Wright-designed structure in the architect's hometown.

A bizarre house filled with an astounding array of collections.

The remains of a enormous earthen figure of unknown origins cuts across a rural Wisconsin road.

The menacing creature had a tremendous influence on the local culture before being exposed as a hoax.

A military museum and library dedicated to the citizen soldier.

This historic hotel invented the chocolate brownie.

The last masonry skyscraper ever built reveals a transitional moment in architectural history.

This inanimate goat created by the "welding nun" has been helping to clean up the city of Spokane for more than 40 years.

This hidden sculpture garden full of Wild West art is one of San Antonio's best-kept secrets.

Two small markers remember the Alamo's feline protectors.

A 131-year-old wunderkammer of Texas history.

Legend has it the commander of the defenders drew a fateful line in the dirt with his sword just before the final battle.

No one knows how this Pacific Northwest spruce tree came to have so many trunks.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

Once the future of underwater combat, this old sub is now open for visitors to muck around in.

This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.

Blighted Irish field and the ruins of a 19th-century cottage on the edge of urban Manhattan.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

This statue inspired by Renoir's famous painting embodies the jovial spirit of Key West.

A historic presidential getaway on the continental United States' southernmost island.