A sweet symbol marks the place where torturous executions were once carried out.

The remains of a grand castle that may have inspired Bram Stoker's Dracula.

A pub that is literally in the middle of nowhere, but continues to do business.

Old-fashioned knowledge and modern engineering create the world's only rotating boatlift.

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

This stately estate house features a tower covered in a bright, modern mural.

A strange rock with a sinister reputation lurks within the crimson waters of this Scottish glen.

Accessible only at low tide, the deserted island is dotted with World War II ruins.

The true age of this ancient stone circle is unknown, but its stunning vista isn't in question.

The ruins of this gorgeous clifftop castle look like something from a fantasy novel.

The fountain marks the area where hundreds of accused witches were burned at the stake.

360° views of the city plus five floors of optical illusions and hands-on science.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

An Art Nouveau building covered in animal gargoyles and grotesques.

The deepest metro station in the world.

This unassuming museum's slogan translates to “there is a limit of sadness, anxiety has no limits."

An elevator into the Baltic Sea.

Soaring over 6,000 feet in the Bavarian Alps, this beer garden was once Hitler's 50th birthday present.

The 1936 Summer Olympics site is a crumbling remnant of sportsmanship and a history its host country would like to forget.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

A network of concealed passageways lies within a busy London Underground station.

The wing of this deserted Boeing 737 almost touches the Dunkin' Donuts next door.

Someone left a Boeing 737 in a field in southern Bali.