Synagogue built from the stones of Solomon's temple contains the golem of Prague.

Countless grotesque faces stare out from this eerie Prague art wall.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Macabre astrological automaton clock dating to the late 1400s.

The last bastion of Roman presence north of the Alps looms over a German town.

A little sculpture with a large wardrobe.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

A posh members-only club with a literally dramatic history.

The rough and tumble president's childhood home displays the shirt he was once shot in and the speech that saved him.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Visit the monolithic tomb of America's most famous general.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Elevated freight railway turned wildly successful urban park.

This historic Victorian hotel has a scandalous history of affairs and murder.

Sports history, made in the Arroyo Seco.

One of Hollywood’s favorite government buildings.

Where the rich wintered in Pasadena.

A stellar example of Art & Crafts architecture, and a movie set to boot.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

The oldest lawn bowling club in the United States.

This private residence was the template for one of the most beloved television homes of all time.