A huge stone pyramid built for fun.

These mythological giants take time out of their busy day guarding a Victorian market to let you know what time it is.

You'll find the little birds tucked within the rocks of this Australian beach.

The word 'wunderkammer' translates as 'wonder-chamber'. This Wunderkammer is both a museum and a retail store.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

The spectacular history of spectacles on display.

A restaurant on Staten Island showcases a different grandmother’s cooking every night.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

Drink wine handed out through a window as part of an age-old tradition.

Brass cobblestones mark the places where individual Holocaust victims were taken from their homes.

An enigmatic modern marker left next to a historic Roman site.

The yawning maw of this pagan visage is said to bite off the hands of liars.

Rome's semi-secret peephole vista is also a former Crusader stronghold.

Famed for its pie, this eatery has a hidden tunnel that allowed Catholics to secretly walk to church during the Reformation.

Amsterdam's narrowest house facade is a monument to 17th-century tax evasion.

This unusual elevator doesn’t stop or slow down.

One of Amsterdam's narrowest houses is located right across the canal from its widest.

Three connected pink triangles memorialize persecuted gays and lesbians throughout history.

Seven mini rowhouses fill the gap between 54 and 70 Westerstraat.

This unattributed sculpture in Amsterdam is hiding in plain sight.