The notorious headquarters of a corrupt political machine.

Red frames showcase remnants of one of New York's original subway stations.

The most confusing clock in New York.

This demon atop the Notre-Dame de Paris looks utterly bored.

The rough and tumble president's childhood home displays the shirt he was once shot in and the speech that saved him.

This beloved Baltimore spot features caged dolls, a giant Pez collection, and many, many mannequins.

Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.

This translucent sculpture represents a quintessential component of New York City's skyline.

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.