A monument to a Native American leader who was known for never breaking a promise and met his end after signing a deal with white settlers.

A herd of half-sized cow sculptures has stood in this part for nearly 50 years.

Visitors to this arboretum are greeted by three smiling giants crafted from sustainable materials.

Once the extravagant escape of the Ford family, this enigmatic ruin now stands as a haunting reminder of its former glory.

The oldest building in Madrid.

This sacred site lives up to its name with its majestic, color-splashed sandstone formations.

A favorite Paris bar for U.S. expats, including Gershwin, Hemingway, and James Bond.

This emotive sculpture was originally created for the 1878 World's Fair.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

This museum houses an imposing skeleton army comprised of creatures great and small.

A series of abstract, silly sculptures represent the works of a great modern classical composer.

Sitting on an Italian hilltop is this surreal fortress built by the mad inventor of electrohomeopathy.

This enchanting 600-year-old tree is so magical it inspired the beloved tale of Pinocchio.

Incredible labyrinth of man made caves.

These conical kilns measure an impressive 30 feet in diameter, and were once used to produce charcoal for a local blast furnace.

Constructed from the ruins of a former glass factory, this park incorporates the old with the new.

Its interior is adorned with some of the best examples of early Christian mosaics.

A luxurious doomsday bunker hidden beneath an unassuming Las Vegas home offers the best of subterranean suburbia.

This massive and eclectic collection is filled with thousands of sculptures, masks, and assemblages.

Lyon, France is home to two remarkably preserved Roman theaters, one dating back to 15 BCE.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

A historic observatory now an astronomy museum beautifully situated at the moat of the Middle Age city centre.

Home to some of Indiana's last bison herds.