Tens of thousands of tiny bottles stuffed with various items.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

There are no crying babies in this neck of the woods.

A Gothic-inspired fish market is Gothenburg's best place to find loaves and fishes.

The world's biggest floating museum in Gothenburg, Sweden.

One of the world's few mounted blue whales, its jaws are hinged open allowing visitors to descend into a lounge.

The charming storybook building now houses a small police museum.

This walkway is so narrow it needs its own light to stop pedestrian traffic jams.

This street has over a half-dozen names, all at once.

A Byzantine church containing the holy remnants of three saints sits atop the site of an ancient temple.

Ride in 1960s style on the private luxury train Marshal Josip Tito used to travel around Yugoslavia.

The last planned Soviet city was built for the former residents of Prypiat after the Chornobyl disaster.

Over 100 towers were built in Bologna during the Middle Ages, but only 22 survive.

A Roman monument to their own civil engineering prowess.

A giant portrait of an ancient king looms over the river.

A centuries-old forgotten underworld lies beneath Malta.

Monumental sculptures guard many of the graves, transforming this necropolis into an open-air fine art museum.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

This hidden art nouveau gem was designed by an architect in search of a national style.

A statue in Budapest's Liberty Square honors the former U.S. president's efforts to end the Cold War.

A series of caves under Castle Hill that once held the prisoner Vlad Tepes, better known as Count Dracula.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.

A small but hugely whimsical theater where marionettes play out the "The Battle of Stalingrad."