The final resting place to 300 Victorian-era pets hides inside the city park.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

You'd never know the houses at 23-24 Leinster Gardens were fakes—until you see the train tracks on the other side.

England's steepest street has such a drastic incline that locals tie their parked cars to lampposts when it gets icy.

An eccentric German artist built this weird and wondrous castle packed with shocking sculptures and alien art.

The bluer than blue waters in these natural Israeli caves are reached via the world's steepest cable car.

The most peaceful "country" in the Middle East.

The mosaic floor of a 4th-century synagogue features a pagan zodiac wheel alongside traditional images of a Torah ark and menorahs.

A sprawling ancient Jewish cemetery with over 30 rock-hewn burial caves.

This subterranean funicular is one of the world's smallest subways.

You can row a boat through this ancient underground reservoir.

A serene desert oasis speckled with ancient artifacts.

In a small town outside Jerusalem, a roadside diner is devoted to all things Elvis Presley.

This amazing ancient cave was kept secret for seven years to protect it from the public.

These numerous Israeli caves were dug out over hundreds years for reasons ranging from hideouts to burial sites.

This tree was extinct for a thousand years before sprouting again from a 2,000-year-old seed.

Squeezing inside this deep, narrow canyon reveals a festival of desert colors.

A modern-day cabinet of curiosities housed in a 300-year-old inn.

One of only three fountains created by the iconic architect Friedensreich Hundertwasser.

At less than four inches in height, this iconic fictional character is the smallest public statue in all of Moldova.

This abandoned Soviet circus is slowly being restored to its Communist-era glory.

There is a mouldering Jewish cemetery hidden away in the capital of Moldova.

This unassuming museum's slogan translates to “there is a limit of sadness, anxiety has no limits."

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.