Though considered an eyesore by some, this boxy Brutalist high-rise plays a significant role in Sydney's past.

This historic observatory contains the world's oldest refracting lens telescope.

A boardwalk winds through this sliver of coastal nature hidden within Sydney.

Cozy basement bar sports an inventory of over 2,000 beers.

From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.

Iceland's tribute to its thankless civil servants.

It took 40 years to build this Eden-like garden in Marrakech, later restored by Yves Saint-Laurent.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

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

A mud statue stands in the dark tunnels, seeming to hold up the weight of the city above.

The Victoria-era quarantine station for Sydney.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

This little sun pays homage to a massive gate that once stood at this location.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

This Bordeaux parking garage has 712 indoor spaces, and one outdoor.

A Parisian exterminator's shop whose storefront displays stuffed rats hanging from traps.

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

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.

From the Difference Engine to the Cray-1, all under one roof.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

Medicinal spa created from the mineral-rich runoff of a geothermal power plant

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.