Scattered throughout London are ancient remnants of the city's former bounding wall.

A memorial for public executions that dates back to the 14th century.

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

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

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

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

The world’s most primitive form of bungee jumping.

A giant donut stands as a popular symbol of Los Angeles iconography.

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

A second generation sun-powered marvel lights up the night.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

World-famous, Pink's still manages to keep its prized cult fetish status.

The last of its kind in the country.

Inside this clubhouse is a cinephile's paradise.

Hollywood's oldest hotel is the site of the first Academy Awards, the birthplace of Marilyn Monroe's career, and the home of Montgomery Clift's ghost.

There are lots of hands and feet stamped in the cement in front of Grauman’s Chinese Theater, but Mel left behind something extra.

This centerpiece of the Hollywood & Highland shopping center is a recreation of a long-lost movie set.

The decor of this Hollywood movie palace just barely predated the opening of King Tut's tomb.

A prohibition-style speakeasy takes up residence in the last Victorian residence in Hollywood.

The programmatic glory of LA's giant whiskey barrel building has become an upscale reminder of the city's kitschy roadside past.

This iconic neon jester is a local landmark that you might recognize from his cameos in film and television.

Sit at the "Disney table,” where Walt and his team of "imagineers" once dined on the regular.

Church and home-museum of a 1920s female revivalist preacher with a very sordid past.

A desert ghost town—occupied for only 12 years—was once home to more than 500 silver mines.