A former waterfront market is now in the center of town due to some interesting Boston engineering.

The world’s oldest active sailing ship.

This massive redwood tree has a drive-thru tunnel carved out of its trunk.

Windswept and remote, this island was once the home of a rare mammoth and today is home to a rare tree.

California's longest-running tourist attraction is a stump.

A herd of 150 bison live on California's Santa Catalina Island and are at the heart of an ongoing debate between environmental protection and economic expansion.

This nondescript tunnel has been featured in a number of iconic movies, from “Roger Rabbit” to “Back to the Future.”

Not truly a ship nor a building, the Navy's first and last "landship" is now abandoned due to clerical issues.

This stretch of beach along California's central coast is a busy highway for the largest seal in the northern hemisphere.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

This private residence was the template for one of the most beloved television homes of all time.

The unbelievably opulent home built for an infamous newspaperman.

An excursion train traverses a picturesque red-rock canyon along the Verde River.

The massive, incredibly rare instrument is over 11 feet tall with a range so deep it goes lower than humans can hear.

This historic national park is covered in the stunning ruins of red rock pueblos.

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

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

This small-town Connecticut restaurant gives each diner a free book from its vast library.

A house carved into a rock in the 1940s.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

One of the oldest living oak trees in the Southeast.

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

Quite simply the largest tree in the world (by volume).