The only Bahá'í house of worship in North America and one of only a handful worldwide.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

Where the rich wintered in Pasadena.

Former 1954 Del Mar Train Station now serves signature cocktails and delightful culinary treats, and still operates as a Metro stop.

A monument to the man who almost killed Hitler.

An ultra-modern vista that has been featured in so many films the house is a celebrity in its own right.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

Cold war icon and onetime "hole" in the iron curtain.

Beneath the impressive baroque cathedral that rises from the center of Berlin lies the largest collection of Prussian royals in the world.

Once called the "Polish Gold Coast" it is an icon of the neighborhood that bears its same name.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

What's left of the ruins of the 1893 Columbian Exhibition, or World's Fair, also known as the White City.

A haunting statue called "Eternal Silence" has quite the reputation among visitors with active imaginations.

An enormous park-like oasis, full of famous Chicagoans' graves.

A lush green oasis in the middle of Chicago.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

The anatomical-pathological collection of a man who changed surgery.

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

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

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

The London pub overlooks where the Mayflower was moored before setting sail for the New World.