This seaworthy collection was sparked by one man's passion for sailing.

The stones that traveled from Spain to eventually become a holy place for San Francisco's nature worshippers.

Nestled in the heart of San Francisco’s bustling Financial District stands a unique homage to the Mayan and Beaux Arts.

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

This rare example of Vancouver's Victorian past was the home of one of the city's first bookbinders.

Albuquerque found the perfect use for tumbleweeds at Christmastime.

These Pre-Columbian petroglyphs contain representations of birds, deer, hunters, and even some early Native flute players.

One of corporate America's best-kept secrets is also one of the most publicly displayed.

An old bank vault in Atlanta is now the eternal shrine to the King of Rock and Roll.

One of the world’s largest collections of paper memorabilia chronicles 4,000 years of papermaking.

Suspended above the ground in a thicket of towering Georgia trees is a modern architectural wonder.

The largest puppetry museum in the United States houses the world's most complete collection of Jim Henson artifacts.

Healing Springs that once ran red with soldiers' blood.

Scale replica of China's ancient terracotta tomb warriors and Forbidden City are the side project of an eccentric millionaire.

Two massive and unstable sinkholes are yearning to unite, and their consummation could be catastrophic.

Tracks near this Texas nature site were once thought to support the Creationist belief that man and dino coexisted.

An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

A popular swimming hole that hides one of America's most deadly diving spots.

An emerald-green grotto just a short trip from Austin.

255 feet of suds, scrubbers, and blow dryers.

An oddities shop packed with twisted treasures inspired by Oscar Wilde and Edgar Allan Poe.

A health museum containing a 27’’½-foot intestine.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."