The "dragon babies" of southeastern Europe.

A miniature train-ride through Slovenia's largest cave system.

This one-time health resort was used by aristocrats around the world.

A whimsical bridge adorned with decorative dragons.

A public work of art that also provides some relief from the summer heat.

This centuries-old Italian chapel hangs midway down a sheer cliffside.

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

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

A slightly creepy gallery of plaster cast models in the same museum as Michelangelo's David.

The yawning maw of this pagan visage is said to bite off the hands of liars.

The remains of this 2nd-century Roman temple are incorporated into a modern building.

Plaques on its facade commemorate the Tiber's most destructive deluges.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

This equestrian statue of Constantine the Great has been the subject of criticism for centuries.

Breathtaking and huge 430 year old maps of Italy.

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

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

This emotive sculpture was originally created for the 1878 World's Fair.

The celebrated eyesore created by starry-eyed sweethearts.

This modest marker near Notre Dame identifies the very center of Paris.

Site of a classic 19th-century physics experiment to prove the earth is rotating.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

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