Peek through a transparent pyramid and drink in the mountain made of books.

A nostalgic bibliographic gem.

This sprawling bookstore spans four floors and has more than a million books in stock.

Edgar Allan Poe's old dorm is now a shrine to the author's legacy.

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

A historic hill of tall tales, with one rather special tree.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

BDSM, 1930s Style.

Stripes of human ashes cover a back lawn in the most sought-after burial grounds in Paris.

An off-the-beaten-path boutique stuffed with an eclectic collection of upcycled goods.

This museum in a Paris apartment gives a unique look at the iconic French singer's life.

An unusual number plate signifies the building's saucy past.

This off-limits room in the National Library of France is home to a system of pneumatic tubes, once used to bring books to readers.

A popular shrine where the Blessed Virgin allegedly appeared in 1830, displaying a holy armchair and two incorruptible remains of Lady Saints.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

Exquisite wall sculptures carved in secret by an early quarryman in an obscure corner of the Paris Catacombs.

The subterranean "lake" below the Paris opera house inspired the Phantom of the Opera's lair.

In the best of all possible worlds, everyone will get a chance to see this statue in which Voltaire's heart is interred.

How did a French journalist’s grave become the sexiest statue in the cemetery?

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

A grotto-like lodge decorated with gilded mosaics, rocks and a noisy waterfall was the setting for the most sumptuous pleasure house of 1900s Europe.

A favorite Paris bar for U.S. expats, including Gershwin, Hemingway, and James Bond.

The history of radiation is on safe display at the foot of a radiation science laboratory.

Indents in the pavement are all that remain from a grisly death machine in Paris.