An outdoor urban gallery of large-scale artworks by the world's most influential street artists.

A journey begins with a single step, and for many, the road-trip of a lifetime started at this Chicago intersection.

A curious building honoring past and current members of a historic musical comedy troupe.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

This heritage rail line meanders through Delaware’s Red Clay Valley.

This local gem houses the largest collection of pre-Raphaelite paintings outside of the U.K.

The smallest and oldest covered bridge in Delaware.

This splendid Versailles-inspired mansion has the largest French-style formal gardens in North America.

A blend of art, antiquities, and Americana fill this museum, surrounded by whimsical, enchanting gardens.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

The longest covered bridge in Delaware.

The very center of Paris is surrounded by a bevy of strange good luck rituals.

The celebrated eyesore created by starry-eyed sweethearts.

This emotive sculpture was originally created for the 1878 World's Fair.

A beautiful Victorian statue shows France's enduring love of the rhinoceros.

This bridge was constructed from the rubble of the infamous Bastille.

A petite castle folly in the English countryside.

Scattered throughout London are ancient remnants of the city's former bounding wall.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Once designed as the entrance to Buckingham Palace, this structure was later relocated and stands as a victory arch.

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

The tallest church in Mechelen might have been the tallest in the world if not for a lack of funds.

One-time winter retreats of prolific inventor Thomas Edison and his friend Henry Ford.

This ancient sinkhole-turned-healing-pool is a treasure trove of archeological discoveries and may even be the Fountain of Youth.