Where Venice's gondolas go for a tune-up.

Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

Two stone columns flank the grand Venice square, but there were supposed to be three.

Venice's island of the dead.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

A Latvian rescuer who saved countless lives during World War II.

A map store filled with original Cold War era Russian maps of the world.

3,000 market stands in five former Zeppelin hangars.

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

Flamboyant architecture from the turn of 20th century.

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

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.

Ancient paintings known as the "Sistine Chapel of Cave Art."

This impressive chasm is one of the longest natural underground cavities in the world.

Even though some of the buildings date back to the Victorian era, this research institute is still involved in cutting-edge astronomy research.

According to local legend, this church was built with two doors, so that residents of two rival villages had their own entrances.

The longest staircase lock in Britain.

Beneath this headstone lie the severed body parts of three individuals who were caught up in a bloody period of Scottish history.

An 18th-century religious argument etched into stone.

The raised stones in the middle of this road through Culross are relics of a 17th-century class divide.

This unusual 15th-century house of worship once catered to those who sought its healing properties.