Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

A close look reveals that the Scottish monument is just slightly off-kilter.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

A statue in the center of Dublin dedicated to one of their favorite sons of rock & roll.

A guitar mounted on a wall in Temple Bar honors the Irish musician.

A long, winding trek rewards you with a gorge so captivating it inspired a painting in the Tate.

Harry Potter once visited this massive limestone cliff, which was carved by an ancient glacial river.

This Big Sur waterfall drops 80 feet directly into the Pacific Ocean, and inspired the hillside house up top.

Two rocks in a perpetual kiss and one of "the most romantic spot in America."

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

The remains of a Canadian train crash are now mouldering beneath layers of rust and graffiti.

The final resting place of one of the most sensational guitar players of all time was created only after his father got the rights to his music.

A huge musical sculpture and other art installations on the National Oceanic and Atmospheric Administration grounds.

A sliver of nostalgia in Seattle's Viretta Park.

A museum dedicated to the history and exploration of both popular music and science fiction.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

A sinister pyramid in the Frari contains the heart of the famous neoclassical sculptor.

A whimsical bridge adorned with decorative dragons.

This one-time health resort was used by aristocrats around the world.

The "dragon babies" of southeastern Europe.

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

A miniature train-ride through Slovenia's largest cave system.

One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

Christ's blood allegedly preserved in a Belgian town.