A dozen cast iron leopards stand guard along the length of Aberdeen's Union Bridge.

This extinct volcano rises above Edinburgh and is special for its panoramic views over the city.

The dance of this huge clock is a magnificent and eerie commentary on good and evil in the history of humankind.

Protecting the dead from opportunistic body snatchers.

A verdant 17th-century-style garden hidden along Edinburgh’s Royal Mile.

A beautiful Greco-Roman structure houses a well once believed to have healing powers.

A 18th century graveyard and its astonishing cortege of macabre iconography.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

This lovely hilltop tower was specifically built to withstand 100 MPH winds.

It looks like a whale, it's part of Yale, and it's best-known by a nickname you can probably work out for yourself.

The headquarters of the famous Yale society.

A striking 500-year-old mansion provides an unexpectedly sublime home for live deer and a menagerie of exotic stuffed animals.

A labyrinthine underworld of tunnels and caverns hides beneath the city.

A spooky juxtaposition of caves and graves gives this legend-filled cemetery a particularly haunting vibe.

The oldest inn in England served brew to the crusaders.

Pop culture has helped to keep this iconic British building from being destroyed.

One of the oldest and certainly best preserved Cistercian abbeys still in existence.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.

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

Hidden in a grotto 26 feet below Nottingham's oldest hotel, this stylish subterranean drinking den is notoriously hard to find.

Hear the quietest sound from across the dome.

An unusual round church in London with a Templar past.

Eighty million natural history specimens call this gargantuan museum home.