This black shoreline is made up of exploded lava particles.

A controversial memorial at the place where Captain Cook met his violent end.

Try your hand at old-fashioned coffee growing at this museum devoted to one of the world's most coveted beans.

This blowhole is supposedly caused by a trapped monster.

Taxidermied cartoon heads, unseen illustrations, and famous characters all reside in this small gallery space.

Professional and amateur dioramas, taxidermy, and oddities all located in an attic above a gallery.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

One part local history, 99 parts gruesome haunted house.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

These trenches were used to train the Scottish military for life on the frontlines of World War I.

The final resting place of soldiers' loyal canine companions.

Beautiful mostly-abandoned town only accessible by sea-worthy boat or plane.

Two stone columns flank the grand Venice square, but there were supposed to be three.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

The glowing blue Nymphaeum of Emperor Tiberius.

Erotic art covers the walls of the largest ancient pleasure palace.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

Celebrating the accomplishments of Black firefighters in Los Angeles.

Historic funicular railway, believed to be the shortest railroad in the world.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

Giant Redwood-themed cafeteria operates under the golden rule, "Dine Free Unless Delighted."