Berlin's old airport.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

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

This monumental work of art symbolizes the coming together of a previously divided city.

Where once there was a train station bathroom, there is now this German burger joint.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

Check the time in 145 countries at once with this East German relic.

A fascinating insight into daily life in the Eastern Bloc.

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

This sculpture, residing in a quiet corner of a London park, honors the victims of 9/11.

Striking, enormous gold-plated sculpture of Buddha installed in the 19th century.

London's amazing modernist public square that never was.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the first ‘Harry Potter’ film.

Only a few pieces remain of the structure that carried people and goods across the Thames for some 600 years.

The 2,000-year-old beam is tucked within the pedestrian entrance to the old London Bridge.

The Great Fire of London and the regulation of one-way streets both started in this alley.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

The beautiful non-repeating pattern honors the Oxford professor who discovered it.

Once one of the largest rooms full of books in the world, this bookstore basement is still a treat for bibliophiles.

Site of the first hot air balloon flight conducted by the first English balloonist.

Hidden beneath the streets of London is a secret subway that only carried mail.

A diminutive statue that was inspired by the sculptor's own daughter.

Ship-sized kinetic sculptural fantasy.

A museum that chronicles the interesting and often dark history of the London docklands, once one of the major trading ports of the world.