The fences outside some of South London's estates are made from recycled World War II stretchers.

The walls and streets of the ancient city are peppered with penises.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

One of the best collections of antique printing machinery in the world.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

The library houses an incredible collection of some of the world's most impressive books and manuscripts.

Those who own or stay at this 500-year-old, allegedly cursed house often meet terrible fates.

The fierce beast perches atop a pedestal marking where the historic City of London gates once stood.

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

This hilltop park offers magnificent views and a Frank Lloyd Wright masterpiece.

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

Giant origami crease patterns engraved in Santa Monica intersections may even be visible from space.

The blinking light atop the iconic landmark has been sending secret messages for decades.

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

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

Etched into a dry lake bed, this massive directional indicator is accurate without magnets.

Colorado Boulevard’s historic bookstore, operating since the bustling city of Pasadena was merely some orange groves and a few ostrich farms.

The first permanent memorial to a unique secret weapon of World War II.

The Jewish section of the famous Boothill Graveyard was abandoned for nearly 100 years.

Ancient ruins hidden underneath a modern luxury hotel.

Bug-devouring flora are the stars of a special wing of the glass conservatory.

One of the most elaborate displays of Jellyfish is on display at the aquarium.

Steinbeck's old stomping grounds, immortalized in Cannery Row.