Never actually a tree at all, this spot was the site of London's public hangings for nearly 600 years.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

A Google software engineer's Easter egg led to what may be the world's most unusual saved screenshot.

This unusual sculpture honors the city's namesake, Octave Chanute, for his pioneering work in early aviation.

What might be the oldest living tree in London has survived fires, bombings, and estate agents.

This pub was 238 years old when it decided to revamp its image: It started serving Thai food.

Lines from a walking song are etched into a rock in Natural Bridge State Park.

America's oldest Italian restaurant is a San Francisco institution.

A replica of a fort built from a frontier town's mass hysteria in the face of false reports of impending Native American violence.

This overlooked street light once served as a KGB dead letter box.

The oldest continuously-operating Chinese restaurant in the United States has been in business since 1911.

A 1950s beatnik coffee house, turned 60s counterculture hotspot, turned modern music venue.

According to legend, this tomb holds the secrets to time travel.

These tall, red sandstone pinnacles outside Moab are often forgotten amid their more famous neighbors.

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

In a dry, neglected cemetery lies the unassuming grave of a soldier vilified in life but celebrated in death.

This museum offers an actual time machine back through Colorado's past.

In a small Japanese garden off a busy Denver street, a memorial to a brave, principled politician.

The huge collection of paintings of the American West is one of Denver's best-kept secrets.

A focal point of in Denver’s skyline for over a century, inspired by a Venetian basilica.

This modern antique shop is a museum for 1980's Saturday morning cartoon culture.

A unique collection of old miners' cave homes carved in to the hillside cliffs near Death Valley.

The highest paved road in North America winds its way up Mount Blue Sky in Colorado to an altitude of 14,130 feet above sea level.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.