Vienna's diversity-themed traffic lights were inspired by the Eurovision Song Contest.

The solemn exterior conceals an opulent interior of this 17th century church.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

The topiary maze at the Habsburg hunting lodge.

The beautiful baroque library of the Hapsburg empire.

Swedish skyscraper with a 90° twist.

According to legend, this boat-shaped henge is built over the grave of a mythic king.

This chimerical bridge/tunnel appears to dead end right into the sea.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

Micro-nation based around a nine-story high illegally built tower.

It houses the remains of a 17th-century version of the Titanic.

A concrete plant shaped like four giant soldiers commemorates one of the most decisive battles of the Napoleonic Wars.

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

Steadily reminding Czechia of its past.

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

Bohemian paradise covered in majestic forests.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

The first museum in the world devoted to sexual gadgetry.

Macabre astrological automaton clock dating to the late 1400s.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

The tallest hotel in Europe.

Stalinist skyscraper built with help of cryotechnology.

A monument to the defenders of the Arctic in Murmansk, Russia.