A tiny monument to the unsuccessful attempt by Thomas Jefferson to place the prime meridian in Washington.

The innocent intentions of this monument are somewhat lost in the sculpture's muscled imagery.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

An overlooked memorial honoring the local Washington residents who died in World War I.

Decades before the scandal, this staircase on the river was a literal "water gate."

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

Look closely and you’ll notice that the color changes a third of the way up the tower.

What started as a tongue-in-cheek shrine is now a full-blown museum celebrating "The Hoff" and his longtime love affair with Berlin.

When German-Iraqi relations broke down, this embassy was vacated post haste.

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.

The non-native bovine herd was brought in to help conserve these Berlin wetlands.

A crumbling bakery where forced laborers from the nearby concentration camp toiled to feed their fellow prisoners and Nazi soldiers.

The spectacular history of spectacles on display.

An ornate "graveyard" for some of the country's forlorn building relics.

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

Seven mini rowhouses fill the gap between 54 and 70 Westerstraat.

A floating cat sanctuary on an Amsterdam canal.

Tucked in the back of a flower shop, its collection details the fascinating history of the Netherlands's iconic symbol.

Chelsea's soldiers were given strict orders when crossing this historic bridge.

The remains of the oldest synagogue in Britain lay forgotten for seven centuries, hidden under a humble shop.

This unassuming Victorian cemetery is the final resting place of author Lewis Carroll.

This sculpture combines the literary Alice with her real-life inspiration.

What started as a way to address damp basement walls turned into a house filled with intricate hand-carved designs.

This trio of Australian rock spires may have inspired aboriginal legend or just modern tourism.