A motley, fantastical agglomeration of unlikely houseboats along the Shoreham-by-Sea riverbank.

This tiny 1930s Art Deco airport is a beautiful remnant of a bygone era.

This Tudor cottage is adorned with many canary-clasping cats, which originally served as a reminder to a local clergyman of his pet's murderous ways.

This octagonal cottage is the smallest and the oldest council house in the United Kingdom.

Historical etchings such as “Miserable, wild, distracted 1350" and “The Archdeacon is an ass.”

The grave of the mythical giant who stole from wealthy bakers to give to the poor.

A monument to the thrice mayor of London who according to lore made his fortune by selling his rat-chasing cat.

Legend says these colorful, invasive residents are the descendants of birds released by Jimi Hendrix.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

A little sculpture with a large wardrobe.

Climb inside an iron crystal magnified 165 billion times its normal size.

Theme park featuring miniature replicas of European monuments.

Order “Proletariat’s Cutlet” at this communist-themed restaurant allegedly once visited by Lenin.

At night, this memorial illuminates a ghostly outline of a footbridge that connected two sections of the Warsaw Ghetto.

The world’s narrowest house makes for an awkward, four-foot-wide living space.

A heavily politicized roundabout discussing the state of a heavily politicized country.

The final resting place of the last "gypsy king" of Poland.

A hidden art gallery in an abandoned Warsaw fort.

A tree planted by Marie Curie is treasured by the Radium institute that she set up.

In the summer, the area around this sculpture transforms into a vibrant concert venue.

Atop this library is one of the most beautiful green spaces in Warsaw.

Once home to some 250,000 volumes and priceless art artifacts, this Polish estate was a target of bombing during World War II.

A 20th-century picture show in 3-D.

After the famous composer died in Paris, his sister snuck his heart out of the country to honor his wish that it be buried in their native country.