Tables of secondhand books fill the inner courtyard of this 17th-century stock exchange.

Lego blocks now patch Rouen's WWII scars.

An ancient ossuary in Rouen.

The final resting place of soldiers who fell during the First and Second World Wars.

A strangely forgotten claimant to the much contested title of "Source of the Nile."

An ancient Ethiopian cave church is endangered by the simple building of a road.

An Ethiopian "Jerusalem" featuring a church hewn out of a single rock.

An otherworldly restaurant perched on the edge of a jagged cliff next to a medieval holy city.

A strange rock formation with numerous legends trying to explain it.

A peculiar trapezoidal building covered with wonderful humorous reliefs.

An imperial church bombed to ruins during WWII now stands as a jagged memorial.

Berlin's beloved bear is immortalized at the Museum für Naturkunde.

Berlin's natural history museum houses the world's largest mounted dinosaur and the late beloved polar bear Knut.

This secret collection of the strange and occult was rediscovered in a forgotten room of an old house.

The greatest amusement park in the world is wall-to-wall farting dogs, puking rats, and cows with exposed breasts for the whole family.

Catacombs turned marketplace.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

This charming Latvian lane doubled as Baker Street on the Soviet Union’s version of Sherlock Holmes.

A black cat protests the City Guild in Riga's Old Town.

The oldest housing complex in Riga is a mini timeline of architectural trends.

This statue is dedicated to the animal cosmonauts that perished during space flight experiments.

Latvia's symbolic mountain-shaped national library is home to millions of cultural tomes.

This celebration of Latvia’s freedom and independence avoided demolition over half a century of Soviet occupation.

The reconstruction of this prominent building fulfilled a long-written command.