The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

At a rest stop north of Seattle, the trunk of an ancient tree.

There's something big lurking beneath the surface of this tiny Oregon park.

This 47-foot chile pepper sculpture welcomes Scoville heat unit obsessed tourists to the Big Chile Inn.

The second-tallest water tower shaped like a peach in the American South.

The Bloemen Route, or “Flower Route”, stretches 25 miles through prime Dutch tulip country as a result of “tulip mania,” the world’s first economic bubble.

A breathtaking flower tunnel bursts with beautiful golden blossoms.

This 22-acre botanical garden is home to the largest collection of rhododendrons in the world.

This little slice of the Netherlands in the Pacific Northwest blooms in a rainbow of color each spring.

This little valley along Highway 1 is engulfed by thousands of lilies during the spring season.

Nestled between a college and a golf course, the garden is home to more than 2,500 rhododendrons.

The highest point in Washington state is a volcano covered in glaciers.

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

A heavenly experience, right here on Terra Firma.

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

The actual “Hotel Rwanda” that became a hiding place and refuge from the horrors of genocide in 1994.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

A French chateau, failed utopian community, odd museum, and Stonehenge replica in rural Washington State.

An experimental, automotive replica of Stonehenge.

It's believed a castle existed at this site since the 12th century.

A remarkable feat of Victorian engineering across the Firth of Forth.

The oldest church in Inverness witnessed the brutal executions of many Scottish soldiers.

Looking strangely like Rome's Colosseum, this unfinished tower has dominated the skyline for over 100 years.