Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

Graffiti from the 16th and 17th centuries cover the walls of this part of the Tower of London.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

France's most famous cemetery, with some of its most curious tombs.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

A vaudeville performer mounted this hollowed-out redwood log onto the chassis of a truck, and toured the country spreading a message of conservation.

On the Oregon coast there is a natural hole that seems to be draining the sea.

A massive sea stack famous for its appearance in The Goonies.

Two massive rock outcroppings on the Oregon coastline.

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

This unassuming cheese empire in rural Oregon churns out more than 150,000 pounds of cheese each day.

A monument celebrating the idea of reaching inaccessible places.

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

The highest point in Texas is capped by a big silver pyramid.

Oddly shaped rock formation, misassociated with a nearby utopian community.