Unusual adventures and hidden discoveries. Explore our 2018 trips now »
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An 18th Century Persian astrolabe, an instrument that predicts locations of the sun, moon, planet, and stars. On display at the Whipple Museum.
Cambridge, England

Whipple Museum of the History of Science

A treasure trove of astronomical, mathematical, and scientific instruments at Cambridge University.
52.2032, 0.1189
Orrery at Jodrell Bank Discovery Centre
Macclesfield, England

Orrery at Jodrell Bank Discovery Centre

One of the largest mechanical models of the solar system in the world.
53.2339, -2.3039
London, England

Old Operating Theatre Museum & Herb Garret

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.
51.5050, -0.0887
The church's interior
Barcelona, Spain

Sagrada Família

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.
41.4036, 2.1744
Calke Abbey
Derbyshire, England

Calke Abbey

This home of a taxidermy hoarder is among the grandest and most singular of historic English estates.
52.7997, -1.4558
Belgrade, Serbia

Ruins of Yugoslav Army Headquarters

Destroyed Serbian army headquarters sits half crumbled in a largely revitalized Belgrade.
44.8056, 20.4612
Overview
Zagreb, Croatia

Zagreb's Museum of Broken Relationships

Where the lovelorn find a home for their sentimental keepsakes.
45.8158, 15.9736
Luxury Ship, 1974 by Drago Jurak
Zagreb, Croatia

Croatian Museum of Naïve Art

An eclectic art form practiced by untrained masters is celebrated at this museum in the heart of Zagreb's old Upper Town.
45.8153, 15.9732
Lake Bled. (Wikimedia Commons)
Bled, Slovenia

Bled Island and Castle

This one-time health resort was used by aristocrats around the world.
46.3632, 14.0899
Ljubljana, Slovenia

Dragon Bridge

A whimsical bridge adorned with decorative dragons.
46.0519, 14.5102
Kunsthaus Graz
Graz, Austria

Kunsthaus Graz

Austria's ultra-modern art museum looks like Cthulhu's giant alien heart.
47.0710, 15.4340
Murinsel
Graz, Austria

Murinsel

Resting in the middle of an Austrian river, this sci-fi "island" lets people cross in neon style.
47.0731, 15.4346
Riegersburg Castle
Riegersburg, Austria

Riegersburg Castle

A centuries old castle atop a dormant volcano houses museums devoted to both women and witches.
47.0011, 15.9368
(Flickr/fidelramos)
Amsterdam, Netherlands

Oude Kerk

Amsterdam's oldest church, and the center of Dutch prostitution.
52.3744, 4.8980
Leiden, Netherlands

The Wall Poems of Leiden

The works of poetry's biggest names grace the walls of the city of Leiden, all carefully painted by hand.
52.1585, 4.4962
Hortus Botanicus Leiden
Leiden, Netherlands

Hortus Botanicus Leiden

A 'living museum' in Leiden, the oldest of its kind in the Netherlands.
52.1561, 4.4842
Budapest, Hungary

Terror Háza

Museum dedicated to the terror regimes of Hungary.
47.5068, 19.0653
All of Kravice Falls as seen from afar
Studenci, Bosnia and Herzegovina

Kravice Waterfalls

There's a mini version of Iguazu Falls hidden in the Balkans… and it's got a rope swing.
43.1575, 17.6081
Mostar, Bosnia and Herzegovina

Stari Most

Bridge that died in war and was resurected.
43.3371, 17.8148
Transylvania's "Hollywood" Signs
Brașov, Romania

Transylvania's "Hollywood" Signs

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.
45.6580, 25.6012
A Sarajevo Rose.
Sarajevo, Bosnia and Herzegovina

Sarajevo Roses

A number of craters left by fatal mortar strikes have been filled with red resin to remember those lost during the Siege of Sarajevo.
43.8594, 18.4257
The Old Jewish Cemetery in Sarajevo
Sarajevo, Bosnia and Herzegovina

Old Jewish Cemetery of Sarajevo

This historic cemetery was inaccessible for several years due to dozens of land mines.
43.8509, 18.4074
Sarajevo, Bosnia and Herzegovina

Bascarsija

Oriental bazaar in the heart of Sarajevo.
43.8591, 18.4310
Victoria Baths
Manchester, England

Victoria Baths

These lovely Turkish-styled baths were brought back to life after winning a reality show competition.
53.4599, -2.2149