Brass bricks outline the locations of Edinburgh's lost, lively market stalls.

Edinburgh's oldest statue hides within a parking lot behind the city's iconic cathedral.

This was once a hall in which a 16th-century royal banquet was hosted by King James VI of Scotland.

This stately bank building hides a spectacular star-studded ceiling.

The 20th-century chapel’s intricate woodwork includes amazing details, most notably angels playing bagpipes.

One of Edinburgh's oldest pubs hides a 19th-century skittles alley in the back.

The U.K.'s first underground railway line is now a lively thoroughfare for runners and cyclists.

This obscure walkway links Edinburgh’s Old Town with one of the city's prime vantage points.

Every birth, death, and marriage is recorded in these color-coded leather-bound books.

The most loyal of little dogs, or a Victorian era publicity stunt?

This otherwise ordinary close on the Royal Mile constituted the end of the world for Edinburgh’s poorest residents.

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

This series of Scottish caves has no clear purpose other than baffling historians.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

Meet the bronze beloved pet to a family of famous peeing statues.

It's easy to forget what century it is as you wander this rustic homestead.

Each year, teams of the world's best snow sculptors have 65 hours to create frozen masterpieces.

In the middle of a suburban Denver neighborhood is a cave that once provided solace for a prominent Ute chief and his family.

A lively annual event in which thousands of people race to push coffins heavy with bodies up a hill.

This hot dog-shaped diner has moved all around Colorado, never been to New York.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

Possibly the world's only drive-in movie theater with an attached motel.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

This spectacular track has run continuously since 1882.