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

A museum marks and documents the site of the Titanic's launch.

A Victorian Gothic masterpiece housing a world-class collection of rare books and manuscripts.

The only monument to name all of the passengers and crew who died on the RMS Titanic.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.

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.

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

A fantastic castle rumored to be the birthplace of King Arthur.

Eighty million natural history specimens call this gargantuan museum home.

Northern Ireland's Brobdingnagian stepping stones.

Famously misunderstood wonder of the ancient world

Five candy-colored villages on the Italian Riviera.

The yawning maw of this pagan visage is said to bite off the hands of liars.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

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

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

Try not to get slimed in Tribeca.

A curious carving hides on a marble column in the Mosque-Cathedral of Córdoba.

One of the most spectacular bridges in Spain spans a narrow chasm that divides the city of Ronda.

Blue-green pools and smooth stones comprise one of Spain’s most idyllic hidden wonders.

This quaint Spanish village agreed to be painted blue as a marketing stunt but found that they preferred it that way.

Rare karst landscape eroded from a flat seabed.