Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

Along the edge of this fountain are 365 smaller fountains that represent the days of the year.

Romania's triumphal arch looks out over Bucharest.

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

This memorial to the victims of the Romanian Revolution of 1989 is often compared to a potato on a skewer.

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

In one Santa Monica parking lot a mushroom cloud made of chains heralds a message of peace.

This well-traveled chess park offers scenic views of the pacific and a colorful, eclectic clientele.

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.

One of the first skyscrapers in Santa Monica, and a famous getaway for the Hollywood elite of then and now.

Europe's largest natural bridge has a 19th century royal chateau built into its side.

This unique Renaissance castle was turned into a home for Nazi occultism.

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

Soaring over 6,000 feet in the Bavarian Alps, this beer garden was once Hitler's 50th birthday present.

The site of a concentration camp where inmates were made to take part in one of the largest counterfeiting operations in history is now hauntingly empty.

Scars of this building's past life as a violent prison still cover its walls.

A famous big wave from Japan serves as a tribute to the victims of the disastrous Elbe flood.

This Nazi ruin was the site where Hitler was almost blown up by a suitcase bomb.

A tribute to smugglers and the Butter Wars.

The birthplace of Karl Marx is now a museum dedicated to the communist revolutionary's life and work.

Today this former Nazi concentration camp stands as a poignant memorial to the victims of fascism, and a warning from history.

A sandstone block marks the alleged spot where the legendary writer was conceived.

The remains of 40,000 humans, meticulously stacked in a tiny churchyard shed.