Some 80,000 Delft Blue tiles line the inside of this Amsterdam walkway.

Europe's official "zero-level," the equator of elevation.

In the days before house numbers, these colorful signs held clues about various buildings' purposes.

This museum is housed in an unassuming building that witnessed one of the most daring feats of satire in modern history.

Drink among marionettes at this pub inside a historic puppet theater.

Brussels' favorite peeing boy has a sister.

A unique home built by Andrew Jackson Caldwell that also served as a military hospital.

This hidden jockey “walk of fame” celebrates the winning riders of the Kentucky Derby.

This 19th century mansion façade adorned with immigrant patriotism is a symbol of Louisville’s history.

The first KFC is on the National Register of Historic Places.

A local scoured more than 1,000 acres for stone to create his masterpiece.

This library and museum is dedicated to the life and literature of the Indianapolis native author.

Elvis's own personal tropical hideaway.

This brightly made over hotel hides decades of suicide, serial killers, and mysterious deaths.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

This weird abode has inspired everything from the "House On Haunted Hil" to a robot hunter's pad.

It should come as no surprise that the best view of the Hollywood sign is from Batman's lair.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

The final resting place of an unidentified revolutionary soldier sits behind a Virginia church.

The tomb was guarded by soldiers from both sides of the war, and some left their initials carved in the brick.

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

Built in 1821 using rooms from another estate, the Phillips House is the only historic home on scenic Chestnut Street open to the public.