Natural sonic phenomenon comes with a grisly legend of murder and blood.

One of the American Southwest's most extensive collections of Navajo rock art.

A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

A massive natural rock arch gives the Tuscan mountain its own window to the sky.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

This gnarled old tree supposedly sprouted from seeds kept in the pocket of a 16th-century Spanish sailor.

A German town is growing a building out of trees.

Twenty-three trees, each paired with a basalt stone, line a street in Chelsea, continuing an urban project started by German Fluxus artist Joseph Beuys.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

A tree grown from astronaut seeds which were exposed to cosmic rays.

A clone-tree in Washington Square Park sprung from seeds that went to the Moon and back.

Thirteen trees representing the original thirteen colonies were planted with soil from historic Revolutionary battlefields.

The tree is thought to be the oldest oak in Texas and was once crowned state champion for its monumental size.

Opinions differ as to whether this Arizona tree was actually used as a Wild West jail, but that hasn't stopped the town from capitalizing on it.

The oldest living organism in New York City. Maybe.

The last orange grove of the San Fernando Valley is owned and protected by CSU Northridge.

An 80-year-old plane tree is devouring an iron bench at Ireland's oldest law school.

A battle between nature and architecture in the Cambodian jungle.

The longest living non-clonal organisms on Earth.

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

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

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

A modern-day Lascaux cave underneath Paris.

Hidden away in a modern library are the remains of one of the 18th century's most celebrated wunderkammers.