This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

The author of Uncle Tom's Cabin was neighbors with Mark Twain while living in this Connecticut home.

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

Yo, Adrian!

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

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

A popular European tradition makes its way to the states on one of America's most famous bridges.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

The "Seinfeld" diner.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

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

A colorful square marks the heart of the city's LGBTQ community.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

The site of the climactic scene from the classic horror film is now a historic landmark.

Home to items never before seen by the public.

The site where Poe "in great distress, and ... in need of immediate assistance" likely died.

A wall of chewing gum moonlights as collective art.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

The most visited, and possibly most controversial, museum in Germany.

This spooky statue sits outside a famous Prague theater.

The first museum in the world devoted to sexual gadgetry.

A giant concrete Brutalist water tower in suburban Johannesburg.

Balconies that have a most unusual accent.

Mysterious 500-year-old tapestries depict a unicorn hunt.