Places Cactam Wants to Go

The ruins of an abandoned 18th-century town that is slowly being reclaimed by the forest.

New London, Connecticut still holds a grudge against its hometown son who turned traitor and burned the city.

A sprawling outdoor museum filled with larger-than-life works of art.

A simple plaque on the facade is the only reminder that the treaty ending the American Revolution was signed inside.

The tomb of history's greatest potato promoter is surrounded by tubers.

Dedicated to the history and culture of smoking, this small museum now includes a vape lounge.

The Argonaute submarine was the French navy's pride and joy in the 1950's.

An odd museum dedicated to French fakes.

Despite being considered a thoroughly American sport, basketball's oldest surviving playing field is found in the basement of a Paris YMCA.

The personal library of the founder of modern neurology is open to visitors.

One of the oldest masonic museums in Paris.

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

This innocuous-seeming building is actually the remnant of a major wartime brothel.

BDSM, 1930s Style.

Museum on French naval history, with magnificent figureheads, a historic diving suit, and a boat used by Napoleon.

This little-known relic crypt holds stolen parts of a Roman Empress.

A subterranean shelter remains intact under a busy Paris railway station.

Where the high court feasted, frolicked, and high courtesans put their royal lovers' diamonds to the test.

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.

Behind the pink curtain, Au Bonheur du Jour, an art gallery of erotic archives.

A museum of magic with a Sadist past.

This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.

Two small chapels housed inside an ancient tree.

One of the world's most complex timepieces.