A huge musical instrument played by the ocean.

This sculpture was made out of recycled guns that were turned in to the city.

Ruins from the Parthenon and petrified wood line the interior of one of the world's most famous monuments.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

A preserved college lock-up that recalls a clubhouse approach to discipline.

This historic funicular system combines the old with the new while offering delightful views over the surrounding valley.

In 2004, a Dave Matthews Band tour bus dumped 800 pounds of waste off a bridge and onto an unsuspecting tour boat below.

Lines on the pillar of Heidelberg's Karl-Theodor Bridge record the dramatic heights of past floods.

Named after and designed by women, this unique cultural center is an early 20th-century mansion covered in a modern shell.

A museum dedicated to celebrating the humble wingnut.

The grave of William Rosenberg, founder of Dunkin Donuts (now Dunkin') with shops coast to coast in the US and 42 countries worldwide.

Known as one of the most climbed mountains in the world, this barren peak is permanently bald thanks to an anti-wolf fire.

A tribute to Samuel Wilson, who may be the original "Uncle Sam."

The bones of the Biblical Magi traveled to Constantinople and Milan before landing in their current home inside an elaborate golden reliquary in the Cologne Cathedral.

The last remaining location of a drive-up hot dog stand named after a local pool shark.

A terrace reminiscent of Rome's Spanish Steps is tucked away in a little park in Washington, D.C.

Where three rails and three centuries of transportation meet.

A small park honors the legendary Ukrainian poet.

This pavement line and accompanying statue commemorates the starting point for the world's oldest annual marathon.

This subtle Berkeley paving stone actually marks off a lawless tube of air that extends into space.

In a forgotten Central Valley industrial park lies the busiest railroad junction in California.

The first religious structure on the island of Luzon and a survivor of World War II.

This towering wooden Sasquatch was carved with a chainsaw.

A gift from Japan, 17th-century lantern stands among the cherry trees at D.C.'s Tidal Basin.